Emmy Winner

7 Wins

First Aired:
Episode 1
A pair of socially awkward theoretical physicists meet their new neighbor Penny, who is their polar opposite.
24 September 2007

Episode 2
The Big Bran Hypothesis
Penny is furious with Leonard and Sheldon when they sneak into her apartment and clean it while she is sleeping.
01 October 2007

Episode 3
The Fuzzy Boots Corollary
Leonard gets upset when he discovers that Penny is seeing a new guy, so he tries to trick her into going on a date with him.
08 October 2007

Episode 4
The Luminous Fish Effect
Sheldon's mother is called to intervene when he delves into numerous obsessions after being fired for being disrespectful to his new boss.
15 October 2007

Episode 5
The Hamburger Postulate
Leslie seduces Leonard, but afterwards tells him that she is only interested in a one-night stand.
22 October 2007

Episode 6
The Middle Earth Paradigm
The guys are invited to Penny's Halloween party, where Leonard has yet another run-in with Penny's ex-boyfriend Kurt.
29 October 2007

Episode 7
The Dumpling Paradox
When Howard hooks up with Penny's old friend, his absence in the gang causes problems for the rest of the guys.
05 November 2007

Episode 8
The Grasshopper Experiment
When Raj's parents set him up on a blind date, he finds he can talk to women with the aid of alcohol.
12 November 2007

Episode 9
The Cooper-Hofstadter Polarization
Leonard and Sheldon's friendship is put to the test when Leonard wants to present a paper they co-authored at a physics convention, but Sheldon doesn't.
17 March 2008

Episode 10
The Loobenfeld Decay
Leonard lies to Penny so that he and Sheldon can get out of watching her perform. However, Sheldon believes that the lie has too many loose ends, so he comes up with a new, unnecessarily complex one to replace it.
24 March 2008

Episode 11
The Pancake Batter Anomaly
When Sheldon gets sick, Leonard, Howard and Raj go AWOL, leaving a reluctant Penny to deal with him.
31 March 2008

Episode 12
The Jerusalem Duality
Sheldon decides to give up his work and focus on other tasks when a 15-year-old prodigy joins the lab, so the other guys come up with a plan to get rid of him.
14 April 2008

Episode 13
The Bat Jar Conjecture
Sheldon becomes so intent on demonstrating his intellectual superiority over the other guys that they kick him off the Physics Bowl team and replace him with his nemesis, Leslie.
21 April 2008

Episode 14
The Nerdvana Annihilation
Penny gets mad at the guys when their full scale model of a time machine causes her to miss work, which prompts Leonard to give up all of his nerd memorabilia.
28 April 2008

Episode 15
The Pork Chop Indeterminacy
Leonard, Howard and Raj fight over Sheldon's twin sister when she arrives in town. Raj takes part in a drug trial to suppress his selective mutism.
05 May 2008

Episode 16
The Peanut Reaction
When Penny learns that Leonard has never had a birthday party, she and the rest of the guys plan a surprise party for him.
12 May 2008

Episode 17
The Tangerine Factor
After a bad breakup, Penny finally agrees to go out on a date with Leonard, however they both develop doubts and turn to Sheldon for advice.
19 May 2008

Episode 1
The Bad Fish Paradigm
Leonard becomes concerned when his date with Penny ends abruptly and she starts blowing him off. When told the truth, Sheldon would rather move out than keep Penny's reasons a secret from Leonard.
22 September 2008

Episode 2
The Codpiece Topology
Sheldon is annoyed when Leonard turns to Leslie for comfort after seeing Penny with another guy.
29 September 2008

Episode 3
The Barbarian Sublimation
Sheldon introduces Penny to online gaming, however she refuses to quit after becoming addicted.
06 October 2008

Episode 4
The Griffin Equivalency
The guys struggle to cope with Raj's arrogance after he is featured in a People magazine article.
13 October 2008

Episode 5
The Euclid Alternative
Sheldon annoys the gang when Leonard can't drive him to and from work, so they try to teach him how to drive.
20 October 2008

Episode 6
The Cooper-Nowitzki Theorem
Sheldon is flattered when a graduate student takes a shine to him, however her extreme devotion becomes too much to handle.
03 November 2008

Episode 7
The Panty Piñata Polarization
Penny plans revenge when Sheldon bans her from the guys' apartment, while Howard and Raj use the latest technology to try to find the house being used in "America's Next Top Model."
10 November 2008

Episode 8
The Lizard-Spock Expansion
Leonard and Howard's friendship is jeopardised when Leonard steals a girl from Howard.
17 November 2008

Episode 9
The White Asparagus Triangulation
Sheldon believes that Leonard will wreck his relationship with Stephanie, so he decides to take matters into his own hands.
24 November 2008

Episode 10
The Vartabedian Conundrum
Leonard tries to slow down his relationship with Stephanie when he realizes that they are living together, while Sheldon becomes convinced that he has an untraceable disease.
08 December 2008

Episode 11
The Bath Item Gift Hypothesis
Leonard is disappointed when Penny develops an interest in an attractive physicist at the university. Meanwhile, Sheldon struggles to find an appropriate Christmas gift for Penny.
15 December 2008

Episode 12
The Killer Robot Instability
Howard becomes depressed after Penny makes a cruel statement about his love life, while the rest of the guys prepare for a grudge killer robot duel against an obnoxious colleague at the university.
12 January 2009

Episode 13
The Friendship Algorithm
Sheldon tries to make friends with Kripke in the hope that it will get him access to a coveted computer in the lab.
19 January 2009

Episode 14
The Financial Permeability
Leonard and Sheldon try to help out Penny when she can't afford to pay her rent.
02 March 2009

Episode 15
The Maternal Capacitance
Sheldon hits it off with Leonard's psychoanalyst mother, but she drives Leonard and Penny to the bottle.
09 February 2009

Episode 16
The Cushion Saturation
Howard hooks up with Leslie, while Penny accidentally ruins Sheldon's spot on the couch.
21 April 2009

Episode 17
The Terminator Decoupling
On a train to San Francisco, Howard, Raj and Leonard fight for the affections of sci-fi star Summer Glau, while Sheldon is forced to turn to Penny for help when he leaves his flash drive behind.
09 March 2009

Episode 18
The Work Song Nanocluster
Sheldon's assistance with Penny's home-based business leads to disaster.
16 March 2009

Episode 19
The Dead Hooker Juxtaposition
Penny becomes jealous when a gorgeous new neighbor attracts the guys' attention.
30 March 2009

Episode 20
The Hofstadter Isotope
Leonard is so upset when a friend from the comic book store begins dating Penny that he convinces Howard and Raj to take him to a bar so that he can pick up a woman of his own.
13 April 2009

Episode 21
The Vegas Renormalization
After being dumped by Leslie, Howard heads to Las Vegas with Leonard and Raj. Meanwhile, Penny is forced to take in Sheldon after he locks himself out of his apartment.
27 April 2009

Episode 22
The Classified Materials Turbulence
Penny's second date with Stuart has significant implications for Leonard. Howard enlists the guys' help with one of his NASA projects.
04 May 2009

Episode 23
The Monopolar Expedition
Penny gets upset when she finds out Leonard and the guys plan to work at the North Pole for the summer.
11 May 2009

Episode 1
The Electric Can Opener Fluctuation
After returning from the North Pole, a conflict among the guys sends Sheldon back to Texas and interferes with Leonard's reunion with Penny.
21 September 2009

Episode 2
The Jiminy Conjecture
Leonard and Penny's first night together goes awkwardly. Sheldon and Howard wager on the species of a cricket.
28 September 2009

Episode 3
The Gothowitz Deviation
Sheldon attempts to covertly alter Penny's habits, while Howard and Raj try their luck meeting women at a Goth-style club.
05 October 2009

Episode 4
The Pirate Solution
When Raj has to find a new job or be sent back to India, Sheldon's solution leaves Leonard and Penny dealing with Howard as the third wheel.
12 October 2009

Episode 5
The Creepy Candy Coating Corollary
Leonard is forced to ask Penny to set Howard up with one of her friends, while Sheldon seeks payback against sci-fi star Wil Wheaton.
19 October 2009

Episode 6
The Cornhusker Vortex
Leonard tries to learn about football to fit in with Penny's friends. Meanwhile, a loss in a kite war threatens to end Raj and Howard's friendship.
02 November 2009

Episode 7
The Guitarist Amplification
Sheldon is caught in the middle when Leonard and Penny argue about Penny's friend staying at her apartment.
09 November 2009

Episode 8
The Adhesive Duck Deficiency
Penny is forced to turn to Sheldon for help when she dislocates her shoulder in the bathtub. Meanwhile, the rest of the guys accidentally get stoned in the desert while waiting for a meteor shower.
16 November 2009

Episode 9
The Vengeance Formulation
Sheldon plans revenge after Kripke humiliates him on the radio. Howard develops doubts about his relationship with Bernadette.
23 November 2009

Episode 10
The Gorilla Experiment
Sheldon attempts to help Penny understand physics to impress Leonard, while Howard becomes jealous when Bernadette takes an interest in Leonard's research.
07 December 2009

Episode 11
The Maternal Congruence
Leonard's mother makes a visit to his dismay and Sheldon's delight.
14 December 2009

Episode 12
The Psychic Vortex
Raj talks Sheldon into being his wingman at a university mixer. Leonard has trouble dealing with Penny consulting a psychic.
11 January 2010

Episode 13
The Bozeman Reaction
When their apartment is robbed, Leonard and Sheldon turn to Howard and Raj to create a state-of-the-art security system.
18 January 2010

Episode 14
The Einstein Approximation
Sheldon wreaks havoc when he is stumped by a difficult physics question.
01 February 2010

Episode 15
The Large Hadron Collision
When Leonard is offered a trip to Switzerland on Valentine's Day to visit the CERN laboratory, Sheldon uses any and all means to be his guest instead of Penny.
08 February 2010

Episode 16
The Excelsior Acquisition
Sheldon misses an opportunity to get Stan Lee's autograph because he has to make an appearance in traffic court.
01 March 2010

Episode 17
The Precious Fragmentation
The guys' friendship is threatened when they find a ring from the "Lord of the Rings" trilogy.
08 March 2010

Episode 18
The Pants Alternative
Sheldon seeks help from the rest of the gang in overcoming his fear of public speaking when he receives an award.
22 March 2010

Episode 19
The Wheaton Recurrence
Sheldon takes on Wil Wheaton in a game of bowling. Leonard and Penny's relationship comes to a crossroad.
12 April 2010

Episode 20
The Spaghetti Catalyst
Sheldon is forced to go behind Leonard's back to spend time with Penny following their breakup.
03 May 2010

Episode 21
The Plimpton Stimulation
Chaos ensues when a nymphomaniac physicist visiting Sheldon hooks up with Leonard.
10 May 2010

Episode 22
The Staircase Implementation
Leonard tells Penny about how he and Sheldon became roommates and what happened to the elevator.
17 May 2010

Episode 23
The Lunar Excitation
Penny has a night of angry, drunken sex with Leonard, much to his confusion. Meanwhile, Howard and Raj search for Sheldon's perfect match online.
24 May 2010

Episode 1
The Robotic Manipulation
Penny ends up tagging along on Sheldon's first ever date with Amy, while Howard finds an unusual use for a robotic arm.
23 September 2010

Episode 2
The Cruciferous Vegetable Amplification
When Sheldon calculates the technology to download his consciousness into a robot won't be invented soon enough, he desperately tries to find a way to increase his lifespan.
30 September 2010

Episode 3
The Zazzy Substitution
Following his 'breakup' with Amy, the gang become concerned with Sheldon's obsessive search for non-human companionship and call his mother to intervene.
07 October 2010

Episode 4
The Hot Troll Deviation
Howard tries to get Penny's help in winning back Bernadette, but first has to confess the embarrassing reason why they broke up in the first place. Raj and Sheldon clash over a desk.
14 October 2010

Episode 5
The Desperation Emanation
Sheldon is scared that he is in a relationship when Amy asks him to meet her mother, and Leonard asks Howard and Bernadette to set him up because he is the only person in the group without a girlfriend.
21 October 2010

Episode 6
The Irish Pub Formulation
Leonard tries to keep everyone from finding out that he spent the night with Raj's sister, but Sheldon finds out and concocts an elaborate story to help him keep the secret from Raj.
28 October 2010

Episode 7
The Apology Insufficiency
An FBI agent interviews the guys when Howard needs to obtain a security clearance.
04 November 2010

Episode 8
The 21-Second Excitation
The guys camp out all night waiting to see an extended cut of Indiana Jones, while Penny and Bernadette invite Amy to her first slumber party.
11 November 2010

Episode 9
The Boyfriend Complexity
Penny asks Leonard to pose as her boyfriend when her father visits. Howard, Raj and Bernadette have an awkward encounter when they spend the evening together.
18 November 2010

Episode 10
The Alien Parasite Hypothesis
Amy finds she has sexual feelings for Penny's ex-boyfriend Zack, while Raj and Howard try to prove who would be the better superhero.
09 December 2010

Episode 11
The Justice League Recombination
The guys enter a costume contest as members of the Justice League and convince Penny and Zack to join them.
16 December 2010

Episode 12
The Bus Pants Utilization
Leonard has an idea for a new smartphone app and asks the guys for help, however Sheldon tries to take over the project, and Leonard fires him.
06 January 2011

Episode 13
The Love Car Displacement
Chaos ensues when the gang spend the weekend together at a science convention.
20 January 2011

Episode 14
The Thespian Catalyst
To improve his skills as an instructor, Sheldon asks Penny to give him acting lessons. Meanwhile, Raj begins having impure fantasies about Bernadette.
03 February 2011

Episode 15
The Benefactor Factor
To secure needed funding for the university, Sheldon convinces Leonard to get friendly with a wealthy benefactor.
10 February 2011

Episode 16
The Cohabitation Formulation
Bernadette makes Howard choose between herself and his mother, while Penny and Raj become upset when Leonard and Priya start dating.
17 February 2011

Episode 17
The Toast Derivation
Sheldon becomes concerned when everybody begins to hang out at Raj's apartment and discovers Leonard is the center of the group.
24 February 2011

Episode 18
The Prestidigitation Approximation
Priya forces Leonard to choose between a relationship with her or a friendship with Penny. A magic trick by Howard has Sheldon fooled.
10 March 2011

Episode 19
The Zarnecki Incursion
The guys go all out to help Sheldon find the person responsible for hacking his online gaming account, while the girls' hatred for Priya increases.
31 March 2011

Episode 20
The Herb Garden Germination
Sheldon and Amy secretly experiment on the gang by spreading rumors when they hear that Bernadette is thinking about breaking up with Howard.
07 April 2011

Episode 21
The Agreement Dissection
When Priya finds a loophole in the roommate agreement to throw Sheldon out for the night, Penny, Amy and Bernadette take him to a nightclub.
28 April 2011

Episode 22
The Wildebeest Implementation
Sheldon invents a three-player chess game, Penny and Amy use Bernadette to spy on Leonard and Priya, and Raj tries a new drug to treat his social anxiety.
05 May 2011

Episode 23
The Engagement Reaction
Howard believes that his mom suffered a heart attack because he told her that he's marrying Bernadette, Sheldon freaks out over germs, and Penny and Priya bond.
12 May 2011

Episode 24
The Roommate Transmogrification
Raj moves in with Sheldon after hearing Leonard and Priya engage in a Star Trek fantasy in his apartment. Bernadette receives her doctorate.
19 May 2011

Episode 1
The Skank Reflex Analysis
The gang deal with the fallout from Penny and Raj's night together. Amy counsels Penny when she considers moving back to Nebraska, Bernadette confronts Raj about his crush on her, and Sheldon takes charge of the paintball team.
22 September 2011

Episode 2
The Infestation Hypothesis
Amy gets inadvertently caught in the middle of a fight between Sheldon and Penny over a chair. Leonard tries to add some spice to his long-distance relationship with Priya.
22 September 2011

Episode 3
The Pulled Groin Extrapolation
Leonard accompanies Amy to a colleague's wedding. Howard tries to convince Bernadette to live with his mother after they get married.
29 September 2011

Episode 4
The Wiggly Finger Catalyst
Penny sets up Raj with a deaf friend, not knowing that she's actually a gold digger, and Sheldon decides to let his minor decisions rest on the roll of the dice.
06 October 2011

Episode 5
The Russian Rocket Reaction
Sheldon takes offense when Leonard wants to attend a party with Wil Wheaton, while Bernadette tries to block Howard's opportunity to go into outer space.
13 October 2011

Episode 6
The Rhinitis Revelation
Sheldon gets upset when his mother comes to visit but refuses to cook for him and attend physics lectures.
20 October 2011

Episode 7
The Good Guy Fluctuation
Sheldon tries to get into the spirit of Halloween by trying to scare the guys after they prank him. Leonard seeks Penny's advice when an attractive comic book artist takes an interest in him.
27 October 2011

Episode 8
The Isolation Permutation
Amy is hurt when Penny and Bernadette go bridesmaid dress shopping without her, so she turns to a reluctant Sheldon for comfort.
03 November 2011

Episode 9
The Ornithophobia Diffusion
Sheldon tries to overcome his fear of birds, while Leonard and Penny attempt to hang out together strictly as friends.
10 November 2011

Episode 10
The Flaming Spittoon Acquisition
When Stuart asks Amy on a date, Sheldon considers having a more serious relationship with her. Meanwhile, the guys become obsessed with a new card game involving Wild West heroes and witches.
17 November 2011

Episode 11
The Speckerman Recurrence
Leonard confronts the man who bullied him in high school, while Penny realizes she did her fair share of tormenting in the past.
08 December 2011

Episode 12
The Shiny Trinket Maneuver
Penny helps Sheldon work on his relationship with Amy when he trivializes one of her accomplishments. Howard is irked by Bernadette's dislike of children.
12 January 2012

Episode 13
The Recombination Hypothesis
Leonard and Penny contemplate reviving their romantic relationship.
19 January 2012

Episode 14
The Beta Test Initiation
Leonard and Penny develop a system to ensure their dates go smoothly. Raj finally finds a woman he can talk to - the virtual assistant on his mobile phone.
26 January 2012

Episode 15
The Friendship Contraction
Leonard signs out of his roommate agreement, reducing himself and Sheldon to mere acquaintances, while Howard tries to think of a cool astronaut nickname for himself.
02 February 2012

Episode 16
The Vacation Solution
When the university forces Sheldon to use vacation days, he decides to hang out in Amy's lab. Howard becomes upset when he hears Bernadette wants him to sign a prenuptial agreement.
09 February 2012

Episode 17
The Rothman Disintegration
Sheldon battles Kripke for a coveted office at the university. Penny receives a very unusual gift from Amy.
16 February 2012

Episode 18
The Werewolf Transformation
Sheldon wreaks havoc when he tries to get a haircut from his regular barber, who is ill. Howard runs into a few problems with astronaut training.
23 February 2012

Episode 19
The Weekend Vortex
Sheldon has to choose between joining Amy at her aunt's birthday party or playing videogames all weekend with the guys.
08 March 2012

Episode 20
The Transporter Malfunction
Raj gets quite a surprise when he asks his parents to set him up on a date. Penny buys Leonard and Sheldon a pair of Star Trek keepsake collectibles.
29 March 2012

Episode 21
The Hawking Excitation
Sheldon uses any and all means to meet his hero, Dr. Stephen Hawking.
05 April 2012

Episode 22
The Stag Convergence
The guys throw Howard a bachelor party, and some embarrassing details about his life get posted on the Internet.
26 April 2012

Episode 23
The Launch Acceleration
Howard faces double trouble when NASA moves up his launch and he has to meet Bernadette's father. Leonard inadvertently jeopardises his relationship with Penny.
03 May 2012

Episode 24
The Countdown Reflection
As Howard prepares for his mission into space, flashbacks show the recent events leading up to his and Bernadette's wedding.
10 May 2012

Episode 1
The Date Night Variable
Raj crashes Sheldon and Amy's second anniversary and interferes in Leonard and Penny's relationship. Howard gets caught in the middle of an argument between Bernadette and his mother.
27 September 2012

Episode 2
The Decoupling Fluctuation
Penny continues to have doubts about her relationship with Leonard. Meanwhile, Howard becomes the target of practical jokes on the space station.
04 October 2012

Episode 3
The Higgs Boson Observation
When Sheldon hires a female grad student to assist him, a jealous Amy asks Penny to help her spy on them. On the space station, Howard begins behaving erratically.
11 October 2012

Episode 4
The Re-Entry Minimization
Howard is offended when his return from space is met with little fanfare. Penny and Amy take on Sheldon and Leonard during game night.
18 October 2012

Episode 5
The Holographic Excitation
While Raj plans Stuart's Halloween party at the comic book store, Howard annoys the rest of the gang by constantly talking about space, and Penny tries to take more of an interest in Leonard's work.
25 October 2012

Episode 6
The Extract Obliteration
Penny enrolls in a college class and keeps it a secret from Leonard. Sheldon causes conflict with Dr. Stephen Hawking over an online game.
01 November 2012

Episode 7
The Habitation Configuration
Howard makes a decision whether or not to move out of his mother's house, while Sheldon is caught in the middle of an argument between Amy and Wil Wheaton.
08 November 2012

Episode 8
The 43 Peculiarity
Leonard feels threatened after hearing about Penny's study partner at school, while Howard and Raj become determined to find out one of Sheldon's secrets.
15 November 2012

Episode 9
The Parking Spot Escalation
The gang are drawn into a fight between Howard and Sheldon over Sheldon's vacant parking spot at the university.
29 November 2012

Episode 10
The Fish Guts Displacement
Howard tries to bond with Bernadette's father during a fishing trip. When Sheldon is obligated to take care of a sick Amy, she finds ways to take advantage of the situation.
06 December 2012

Episode 11
The Santa Simulation
The girls take Raj out to a nightclub to find him a date. A game of Dungeons and Dragons rekindle old memories of Santa for Sheldon.
12 December 2012

Episode 12
The Egg Salad Equivalency
When Penny finds out Alex has a crush on Leonard, Sheldon gets himself and the rest of the guys in trouble with Human Resources whilst trying to solve the problem.
03 January 2013

Episode 13
The Bakersfield Expedition
The guys are stranded in the middle of nowhere when Leonard's car is stolen on the way to the Bakersfield Comic-Con. Back home, the girls try to figure out why the guys are so fascinated with comic books.
10 January 2013

Episode 14
The Cooper/Kripke Inversion
Sheldon is forced to work with Kripke on a project and must concoct an elaborate lie when he can't hold up his end of the work. Howard and Raj get superhero figurines made of themselves.
31 January 2013

Episode 15
The Spoiler Alert Segmentation
Leonard moves in with Penny after a fight with Sheldon, which causes Amy to want to move in with Sheldon. Meanwhile, Raj has a frightening experience with Howard's mother.
07 February 2013

Episode 16
The Tangible Affection Proof
Sheldon gets Alex to buy a Valentine's Day gift for Amy. Leonard and Penny and Howard and Bernadette have a disastrous dinner together. Raj and Stuart host a "Lonely People" party at the comic book store.
14 February 2013

Episode 17
The Monster Isolation
Raj falls apart after his date sneaks out on him, and Sheldon reluctantly returns the favor after Penny helps him out with his "Fun With Flags" program.
21 February 2013

Episode 18
The Contractual Obligation Implementation
Leonard, Sheldon and Howard give lectures on science to junior high students. The girls ditch work to go to Disneyland. Raj devises a date for Lucy that fixes their social anxiety problems.
07 March 2013

Episode 19
The Closet Reconfiguration
Howard becomes upset when Sheldon finds a letter from his estranged father whilst cleaning out his and Bernadette's closet.
14 March 2013

Episode 20
The Tenure Turbulence
Leonard, Sheldon, Raj and Kripke battle for tenure at the university.
04 April 2013

Episode 21
The Closure Alternative
Amy tries to help a depressed Sheldon find closure when one of his favorite TV shows is canceled. Raj becomes paranoid when he finds Lucy's blog.
25 April 2013

Episode 22
The Proton Resurgence
Bernadette and Howard offer to watch Raj's dog and live to regret it. Leonard and Sheldon hire their favorite childhood star to make an appearance.
02 May 2013

Episode 23
The Love Spell Potential
A date between Raj and Lucy takes both of them out of their comfort zones. After a trip to Las Vegas goes awry, the girls join in on a Dungeons and Dragons game, which causes Amy and Sheldon to re-evaluate their relationship.
09 May 2013

Episode 24
The Bon Voyage Reaction
Penny is thrown for a loop when Leonard is offered a job overseas, but the news is an even bigger shock to Sheldon. Raj and Lucy's relationship comes to a crossroad.
16 May 2013

Episode 1
The Hofstadter Insufficiency
Sheldon and Penny bond over missing Leonard. Howard tries to help Raj get over his breakup with Lucy. Amy and Bernadette take a trip together to a biology convention.
26 September 2013

Episode 2
The Deception Verification
Sheldon feels betrayed when Leonard returns from the North Sea and wants to spend his time with Penny instead of him. Howard's latest foray into helping his mother has some disastrous side effects.
26 September 2013

Episode 3
The Scavenger Vortex
The gang get competitive when they are forced to take part in Raj's scavenger hunt.
03 October 2013

Episode 4
The Raiders Minimization
Sheldon gets mad at Amy for ruining one of his favorite movies, Raj and Stuart try to make their online dating profiles more appealing, and Leonard tries to play the sympathy card with Penny.
10 October 2013

Episode 5
The Workplace Proximity
After a fight with Bernadette, Howard ends up on Raj's couch. Sheldon and Amy clash when Amy takes a job at the university.
17 October 2013

Episode 6
The Romance Resonance
Howard tries to do something special to celebrate the anniversary of his first date with Bernadette. Sheldon is conflicted when he makes a major scientific breakthrough but some details have to be corrected.
24 October 2013

Episode 7
The Proton Displacement
Sheldon seeks payback when Arthur "Professor Proton" Jeffries asks Leonard for help on a project instead of him. Raj gets upset at Howard for crashing his night with the girls.
07 November 2013

Episode 8
The Itchy Brain Simulation
Sheldon demands Leonard make up for a mistake from their past. Penny confronts Raj's ex-girlfriend, Lucy.
14 November 2013

Episode 9
The Thanksgiving Decoupling
The gang spend Thanksgiving at Mrs. Wolowitz's house. Howard tries to bond with his father-in-law, and a mistake from Penny's past comes back to haunt her.
21 November 2013

Episode 10
The Discovery Dissipation
Leonard has to deal with the fallout of disproving Sheldon's new scientific discovery. Raj spends a week at Howard and Bernadette's apartment.
05 December 2013

Episode 11
The Cooper Extraction
While Sheldon is at home in Texas, the rest of the gang decorate for Christmas and think about how much he has affected their lives.
12 December 2013

Episode 12
The Hesitation Ramification
After Leonard tries to help Penny following a failed role on a TV show, she makes an important decision. Meanwhile, Raj and Stuart try to practice their social skills, and Sheldon navigates the intricacies of being funny.
02 January 2014

Episode 13
The Occupation Recalibration
Sheldon tries to relax after he is forced to take a vacation. Leonard struggles to be supportive of Penny after she quits her job. Amy receives unwanted attention from a co-worker. Bernadette seeks Stuart's help in replacing one of Howard's comic books.
09 January 2014

Episode 14
The Convention Conundrum
When the guys can't get hold of any Comic-Con tickets, Sheldon tries to hold his own convention and ends up spending a wild night with James Earl Jones. Meanwhile, the girls try to feel more mature by going to a fancy hotel for tea.
30 January 2014

Episode 15
The Locomotive Manipulation
Sheldon and Amy take a train ride to Napa Valley with Howard and Bernadette on Valentine's Day. Leonard and Penny take Raj's dog to the vet when she accidentally eats some chocolate.
06 February 2014

Episode 16
The Table Polarization
Leonard's purchase of a dining room table causes Sheldon to reevaluate the changes in his life. Meanwhile, Howard is offered a chance to go back to space and Bernadette struggles with whether or not to encourage him.
27 February 2014

Episode 17
The Friendship Turbulence
After arguing with Sheldon, Howard tries to make amends by taking him to NASA headquarters in Houston. Penny has second thoughts about quitting her waitressing job when her car dies. Amy gets involved in trying to find Raj a date.
06 March 2014

Episode 18
The Mommy Observation
When Sheldon visits his mother in Houston, he is forced to confront a new reality. Back in Pasadena, the rest of the gang reluctantly take part in Raj's Murder Mystery party.
13 March 2014

Episode 19
The Indecision Amalgamation
While Raj is wracked with guilt when he tries to date Lucy and Emily at the same time, Penny wrestles with whether to take a role in a cheesy movie and Sheldon is torn trying to choose between two gaming systems.
03 April 2014

Episode 20
The Relationship Diremption
Penny tries to help Sheldon when he reconsiders his "relationship" with String Theory. During a dinner with Howard and Bernadette, Raj discovers Howard once embarrassed himself on a date with Emily.
10 April 2014

Episode 21
The Anything Can Happen Recurrence
When Sheldon tries to be spontaneous, it leads to unexpected friction between the girls. Meanwhile, Raj seeks Howard's help in preparing for a date with Emily.
24 April 2014

Episode 22
The Proton Transmogrification
As the gang celebrate Star Wars Day, Sheldon has difficulty dealing with the recent death of Arthur "Professor Proton" Jeffries.
08 May 2014

Episode 23
The Gorilla Dissolution
Penny gets fired from her movie and takes a serious look at her life. Raj sees Emily on a date with another man at the movies. Howard and Bernadette have to take care of his mother after she breaks her leg.
08 May 2014

Episode 24
The Status Quo Combustion
Sheldon gets upset about his career, the destruction of the comic book store and Leonard and Penny's future living arrangements. Howard and Bernadette struggle to keep hold of a caregiver for Mrs. Wolowitz.
15 May 2014

Episode 1
The Locomotion Interruption
Sheldon's trip comes to an end when he is robbed, Penny interviews for a job at Bernadette's company, and Howard is weirded out by his mother's relationship with Stuart.
22 September 2014

Episode 2
The Junior Professor Solution
Sheldon is forced to teach a class as a Junior Professor. Meanwhile, the tension between Penny and Bernadette gives Amy a chance to play both sides.
22 September 2014

Episode 3
The First Pitch Insufficiency
Howard becomes nervous after NASA asks him to throw out the first pitch at a Los Angeles Angels game. Meanwhile, Leonard and Penny try to prove Sheldon wrong when he says that he and Amy have a 'superior' relationship.
29 September 2014

Episode 4
The Hook-up Reverberation
Raj's honesty about his past comes back to haunt him after Emily takes a dislike to Penny. Meanwhile, the guys consider investing in the comic book store.
06 October 2014

Episode 5
The Focus Attenuation
The girls head to Vegas, while the guys try to invent something cool, but only come up with new ways to procrastinate.
13 October 2014

Episode 6
The Expedition Approximation
Sheldon and Raj test whether they could survive a dark-matter research expedition in a salt mine by simulating the conditions in a steam tunnel. Meanwhile, Leonard and Penny seek advice from Howard and Bernadette when they argue about money.
20 October 2014

Episode 7
The Misinterpretation Agitation
The guys befriend one of Penny's clients when he shows up at her apartment. Meanwhile, Bernadette gets upset when Amy torpedoes an article about her for a local magazine.
30 October 2014

Episode 8
The Prom Equivalency
The girls decide to re-enact their high school proms with the guys. While Sheldon feels under pressure to commit to his relationship with Amy, Howard worries about who Stuart will bring as his date.
06 November 2014

Episode 9
The Septum Deviation
Sheldon panics when Leonard announces he has to go into the hospital for surgery. Raj discovers his parents have divorced.
13 November 2014

Episode 10
The Champagne Reflection
While Sheldon retires "Fun With Flags", Leonard, Howard and Raj look for something significant in a dead professor's research, and Bernadette finds out what her colleagues really think of her.
20 November 2014

Episode 11
The Clean Room Infiltration
Amy hosts a traditional Victorian Christmas Eve dinner as Raj's father comes to visit, while the guys try to shoo out a bird they let into the university clean room.
11 December 2014

Episode 12
The Space Probe Disintegration
Raj worries a probe he designed will not work in outer space, while Leonard and Sheldon go shopping with Penny and Amy.
08 January 2015

Episode 13
The Anxiety Optimization
When Sheldon becomes stuck in a rut with his work, the gang try to help him by raising his stress levels. Howard teases Raj with a game called "Emily or Cinnamon."
29 January 2015

Episode 14
The Troll Manifestation
Leonard and Sheldon defend themselves against criticism from an online bully, while the girls confront embarrassing moments from their pasts.
05 February 2015

Episode 15
The Comic Book Store Regeneration
Howard receives some shocking news as everyone prepares for the re-opening of the comic book store. Meanwhile, Penny tries to teach Sheldon how to "let it go," but can't follow her own advice when she learns something infuriating about Amy.
19 February 2015

Episode 16
The Intimacy Acceleration
Sheldon and Penny agree to participate in an unusual experiment. Leonard, Amy, Raj and Emily spend the evening trying to escape a room with a "zombie". Howard and Bernadette run into trouble at the airport after returning from Mrs. Wolowitz's funeral.
26 February 2015

Episode 17
The Colonization Application
A trip to the pet store ends in a fight after Amy learns Sheldon has applied for a one-way mission to colonize Mars. Meanwhile, Leonard surprises Penny with a very "adult" purchase, and Raj gets into trouble when he snoops around Emily's apartment.
05 March 2015

Episode 18
The Leftover Thermalization
Tension arises when a magazine fails to mention Leonard in an article about the paper he co-wrote with Sheldon, and a blackout at Mrs. Wolowitz's home leads to a final family dinner in her honor.
12 March 2015

Episode 19
The Skywalker Incursion
When Leonard and Sheldon are invited to speak at UC Berkeley, they take a detour to try and meet one of their idols. Meanwhile, while cleaning out Mrs. Wolowitz's house, a ping pong battle ensues when Howard and Bernadette argue over the fate of his TARDIS.
02 April 2015

Episode 20
The Fortification Implementation
When Sheldon and Amy build a blanket fort, they come to major crossroads in their relationship. Meanwhile, Howard meets the half-brother he never knew he had, and Penny is invited to appear on Wil Wheaton's podcast.
09 April 2015

Episode 21
The Communication Deterioration
When Raj is asked to create a message on the off chance a NASA mission discovers alien life, the guys fight over what he should do, while Penny contemplates returning to acting.
16 April 2015

Episode 22
The Graduation Transmission
Howard questions his engineering abilities when he and Sheldon can't get a toy drone to fly. A cancelled flight nearly prevents Leonard from giving the commencement address at his former high school. Raj pits his parents against each other when his father cuts him off financially.
23 April 2015

Episode 23
The Maternal Combustion
Personalities collide when Leonard and Sheldon's mothers finally meet. Bernadette reaches her limit with Howard and Stuart.
30 April 2015

Episode 24
The Commitment Determination
As Sheldon presses Leonard and Penny to set a wedding date, he encounters major changes in his relationship with Amy. Meanwhile, Raj wonders if he should break up with Emily, and Howard and Bernadette struggle to ask Stuart to move out.
07 May 2015

Episode 1
The Matrimonial Momentum
Penny struggles with Leonard's confession that he kissed another woman as they prepare to get married in Las Vegas. Meanwhile, Sheldon doesn't know what to do after Amy pushes pause on their relationship.

With built-in subtitles: English French German Hebrew Romanian Russian Spanish Turkish

21 September 2015

Episode 2
The Separation Oscillation
Leonard confronts the woman he kissed on the North Sea in an attempt to set Penny's mind at ease. Meanwhile, Sheldon films a special episode of "Fun with Flags" after his breakup with Amy, and Bernadette feels guilty about withholding a secret from Penny.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

28 September 2015

Episode 3
The Bachelor Party Corrosion
The guys' science skills are put to the test when they get a flat tire during Leonard's bachelor party weekend in Mexico. Meanwhile, the girls force Penny to finally tell her family that she eloped with Leonard.

With built-in subtitles: Russian Romanian German French English Dutch Spanish Turkish

05 October 2015

Episode 4
The 2003 Approximation
Leonard and Penny finally move in together leaving Sheldon very upset with this big change in his life and wishing he could go back to a time when he had no emotions in 2003 before he met Leonard. Raj, Howard and Stuart attempt to form a band.

With built-in subtitles: Spanish Russian German English Dutch Turkish

12 October 2015

Episode 5
The Perspiration Implementation
The guys want to learn to be better at sports so Barry Kripke teaches them fencing. Meanwhile the girls help Stuart try to get more women to come to the comic book store. Amy gets asked out by Stuart and Kripke but she turns them both down.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

19 October 2015

Episode 6
The Helium Insufficiency
Sheldon and Leonard find out that other scientists are trying to steal their Superfluid Helium idea. The gang try and find a new boyfriend for Amy on a new mobile dating app.

With built-in subtitles: Dutch French Romanian Russian Turkish

26 October 2015

Episode 7
The Spock Resonance
Wil Wheaton interviews Sheldon for a Star Trek documentary where he reveals the ring and his plan to propose to Amy. Bernadette wants to start renovating the house and the topic of starting a family together with Howard is brought up.

With built-in subtitles: French English Dutch Romanian Russian Spanish Turkish

05 November 2015

Episode 8
The Mystery Date Observation
Sheldon recruits Howard and Raj in order to find him a new girlfriend, while Bernadette, Penny and Leonard spy on Amy's mystery date.

With built-in subtitles: Russian French English Dutch Spanish

12 November 2015

Episode 9
The Platonic Permutation
On Thanksgiving, Sheldon and Amy try to spend time together as friends and go to an aquarium, Howard reluctantly agrees to volunteer at the soup kitchen with Bernadette, Raj and Emily, and Penny discovers that Leonard knows more about her than she thought.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

19 November 2015

Episode 10
The Earworm Reverberation
Sheldon can't get a tune out of his head. He can't work out what song it is. Meanwhile, Amy is having Dave over to hers, but Bernadette is reluctant. Howard and Raj meet a fan of their band and Sheldon gives Amy an ultimatum.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

10 December 2015

Episode 11
The Opening Night Excitation
Leonard, Howard and Raj have to decide who will take their extra Star Wars movie ticket, while Sheldon plans something special for Amy's birthday.

With built-in subtitles: Turkish Spanish Russian Romanian French English Dutch

17 December 2015

Episode 12
The Sales Call Sublimation
Leonard visits a psychiatrist so Penny can make a sales call on her and they learn some things about their interactions and marital issues. Stuart moves out of the Wolowitz House. Sheldon works with Raj looking for extra-solar planets.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

07 January 2016

Episode 13
The Empathy Optimization
After being forced to deal with a sick Sheldon, the rest of the gang try to treat themselves to a Sheldon-free weekend.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

14 January 2016

Episode 14
The Meemaw Materialization
Meemaw meets Amy, but it isn't all roses. Meemaw seems to have an axe to grind with her. Sheldon comes to Amy's defense, but not before Meemaw lets a little secret of his slip.

With built-in subtitles: Dutch English Romanian Russian Spanish Turkish

04 February 2016

Episode 15
The Valentino Submergence
Sheldon and Amy host a Valentine's Day episode of "Fun with Flags", Leonard and Penny grapple with getting older, Howard and Bernadette find a surprise in their hot tub and Raj is torn between Emily and Claire.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

11 February 2016

Episode 16
The Positive Negative Reaction
Bernadette has some news to share, but the reactions are not what is expected.

With built-in subtitles: Dutch English French German Romanian Russian Spanish Turkish

18 February 2016

Episode 17
The Celebration Experimentation
Amy convinces Sheldon to celebrate his birthday for the first time since his childhood. The group plans a birthday party for him, convincing celebrated Batman actor Adam West. But when Sheldon enters the party he is overcome with anxiety.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

25 February 2016

Episode 18
The Application Deterioration
Sheldon works up a contract to split their portion of their guidance system invention royalties, but Bernadette does not like how it's done. Raj must again decide between Emily and Claire when they both contact him.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

10 March 2016

Episode 19
The Solder Excursion Diversion
Amy is shocked by a revelation from Sheldon when she buys him a new laptop. Raj rats on Leonard and Howard to Penny and Bernadette.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

31 March 2016

Episode 20
The Big Bear Precipitation
Secrets are revealed when Amy and Sheldon join Penny and Leonard on a weekend cabin trip. Raj is more excited about Howard's and Bernadette's impending parenthood than they are.

With built-in subtitles: Russian Romanian French English Dutch Spanish Turkish

07 April 2016

Episode 21
The Viewing Party Combustion
A minor argument between Sheldon and Leonard escalates quickly and drags the rest of the gang into it during a "Game of Thrones" watching party..

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

21 April 2016

Episode 22
The Fermentation Bifurcation
Sheldon and Bernadette spend a night together while the rest of the gang goes to a wine tasting party, but things get uncomfortable for Raj when Zack also attends and takes an interest in Claire.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

28 April 2016

Episode 23
The Line Substitution Solution
Penny has trouble when Leonard's mother comes to town. Sheldon hires Stuart to hang out with Amy while he goes to a movie screening.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

05 May 2016

Episode 24
The Convergence Convergence
Leonard and Penny try to have a wedding ceremony everyone can attend, but it creates serious conflict among Sheldon's mother and Leonard's divorced parents. Howard's invention draws the attention of the Air Force.

With built-in subtitles: Dutch English French Romanian Russian Spanish Turkish

12 May 2016

Episode 1
The Conjugal Conjecture
As Leonard and Penny attempt to hold another wedding ceremony everyone can attend, they have to deal with Penny's family arriving and Leonard's father spending the night with Sheldon's mother.
19 September 2016

Episode 2
The Military Miniaturization
Howard is visited by an Air Force colonel regarding his invention. Penny accidentally lets it slip to her co-workers Bernadette's secret that she is pregnant.
26 September 2016

Episode 3
The Dependence Transcendence
Bernadette confides to Raj she isn't sure if she's ready to be a mother. Penny accompanies Amy to a university mixer, and Sheldon goes to unusual extremes to assist Howard with his military project.
03 October 2016

Episode 4
The Cohabitation Experimentation
When Amy must vacate her apartment for repairs, living arrangements are made with Leonard, Sheldon, and Penny. Howard and Bernadette don't want to know the sex of their baby, but Raj finds out.
10 October 2016

Episode 5
The Hot Tub Contamination
Sheldon and Amy go through a period of adjustment with their new living arrangement. Howard and Bernadette are forced to vacation at home when she falls ill and keep it a secret, unaware Raj and Stuart planned to use their hot tub.
17 October 2016

Episode 6
The Fetal Kick Catalyst
Sheldon and Amy host a brunch. Penny is surprised by her popularity when her movie, Serial Apeist, is featured at a Van Nuys comic book convention.
27 October 2016

Episode 7
The Veracity Elasticity
Amy neglects to tell Sheldon her apartment has been repaired. Leonard and Penny discuss what is to be done with Sheldon's room, but Leonard becomes more upset that Penny's been storing away his collectibles.
03 November 2016

Episode 8
The Brain Bowl Incubation
A proposition by Sheldon shocks Amy. Raj takes an interest in someone at the university.
10 November 2016

Episode 9
The Geology Elevation
Sheldon can't contain his jealousy when Bert receives a large Geology grant. A new toy Howard buys faces judgment by everyone.
17 November 2016

Episode 10
The Property Division Collision
Dividing up their possessions becomes an all-out war between Leonard and Sheldon. Stuart asks to live with Howard and Bernadette and tries to supplant Raj's efforts to help with the new baby.
01 December 2016

Episode 11
The Birthday Synchronicity
Amy's desire to have an intimate night with Sheldon on her birthday is interrupted by Bernadette going into labor.
15 December 2016

Episode 12
The Holiday Summation
After spending the holidays apart, the gang gets together to hear about Sheldon's and Amy's trip to his mother's, Leonard's and Penny's Christmas tree adventure, and Howard's and Bernadette's first days as parents.
05 January 2017

Episode 13
The Romance Recalibration
Leonard and Penny ask for Sheldon's and Amy's help on putting the romance back in their marriage. Howard and Raj go to extreme lengths to stop the floor in Halley's bedroom from making noise.
19 January 2017

Episode 14
The Emotion Detection Automation
Penny wants to help her brother get a job with her company. Sheldon learns of a machine that will help him understand human emotions. Raj reunites some of his old girlfriends to figure out why he is still single.
02 February 2017

Episode 15
The Locomotion Reverberation
Leonard and Howard's attempt to keep Sheldon away from their Air Force project by sending him on a train trip backfires. Penny and Amy take Bernadette for her first night out since having the baby.
09 February 2017

Episode 16
The Allowance Evaporation
Amy discovers everyone at the university knows about Sheldon's and her romantic encounters. Raj's contemplates trying to live without financial support from his father.
16 February 2017

Episode 17
The Comic-Con Conundrum
The guys' annual trip to Comic Con is in doubt when Raj can't afford to go.
23 February 2017

Episode 18
The Escape Hatch Identification
When the gang offers a place for Raj to live, it creates unexpected conflict among everyone and an argument between Amy and Leonard's mother.
09 March 2017

Episode 19
The Collaboration Fluctuation
Leonard, Penny and Raj adjust to their new living arrangements; Sheldon expresses an interest in Amy's work.
30 March 2017

Episode 20
The Recollection Dissipation
Sheldon reaches his limit when he works on projects with Leonard, Wolowitz and Amy in one day.
06 April 2017

Episode 21
The Separation Agitation
Howard and Bernadette have a hard time leaving Halley in daycare when Bernadette returns to work. Also, Bert introduces the gang to his new girlfriend, Rebecca.
13 April 2017

Episode 22
The Cognition Regeneration
Lenard is less than thrilled when Penny considers accepting a job offer from Zack, her ex-boyfriend. Howard teaches Sheldon new things.
27 April 2017

Episode 23
The Gyroscopic Collapse
After celebrating the completion of the top-secret Air Force project, Leonard, Sheldon and Wolowitz get an unwelcome surprise; Amy receives an offer for a summer position as a visiting researcher.
04 May 2017

Episode 24
The Long Distance Dissonance
The gang is concerned when Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.
11 May 2017

Episode 1
The Proposal Proposal
Amy has trouble deciding whether or not she should marry Sheldon. Meanwhile, Bernadette confides in Penny when she finds out some huge news.
25 September 2017

Episode 2
The Retraction Reaction
Leonard angers the University and the Physics Community when he gives an embarrassing radio interview. Bernadette and Amy talk about their success. After the embarrassing radio interview Penny comforts her husband.
02 October 2017

Episode 3
The Relaxation Integration
Sheldon and Amy struggle with picking a wedding date. Amy wants it near a cliff which Sheldon doesn't want. Meanwhile Stuart and Raj fight over one of Bernadette's co-workers for a date.
09 October 2017

Episode 4
The Explosion Implosion
Leonard is devastated by the new friendly relation developing between his mother and Penny. Meanwhile Sheldon takes a detour with Raj and Howard to explore the old belongings of Howard's Science Models.
16 October 2017

Episode 5
The Collaboration Contamination
Amy and Howard work in the lab together causing Sheldon, Bernadette and Raj to feel jealous and lonely. Penny and Leonard use a parenting book to control Sheldon's behavior.
23 October 2017

Episode 6
The Proton Regeneration
Sheldon and Wil Wheaton both go head-to-head for the role of the new Professor Proton, Meanwhile Penny takes care of Halley when Bernadette and Howard are on bed rest.
02 November 2017

Episode 7
The Geology Methodology
Bert asks Sheldon to collaborate on a project with him, Sheldon becomes dubious others finding out because he thinks geology is beneath him. Raj begins dating Bernadette's Indian coworker.
09 November 2017

Episode 8
The Tesla Recoil
Howard and Leonard become upset after they discover that Sheldon has been working with the military without telling them; Bernadette asks Raj to investigate her suspicions that Ruchi is attempting to take her job away from her.
16 November 2017

Episode 9
The Bitcoin Entanglement
Sheldon tries to teach the guys a lesson after they cut him out of a potentially valuable Bitcoin investment. Also, a seven-year-old video reveals a secret about Leonard and Penny's relationship.
30 November 2017

Episode 10
The Confidence Erosion
Sheldon and Amy try to eliminate stress from wedding planning by applying math to the process ending up at city hall. Also, Raj "breaks up" with Howard after realizing his best friend is actually hurting his confidence.
07 December 2017

Episode 11
The Celebration Reverberation
Sheldon and Wolowitz plan birthday celebrations for Amy and Halley, respectively. Also, Leonard receives a Christmas letter from his brother that causes him to spiral out about his own lack of accomplishments.
14 December 2017

Episode 12
The Matrimonial Metric
Sheldon and Amy pick their best-man and maid of honor, by doing tricky experiments on their friends. This causes uproar in the group. Meanwhile, Leonard's self-confidence is still badly damaged after reading his brother's Christmas letter.
04 January 2018

Episode 13
The Solo Oscillation
Sheldon kicks Amy out to work solo, so she and Leonard bond during a series of science experiments; Howard is replaced by Bert in Footprints on the Moon; Penny proves to be a surprising source of scientific inspiration for Sheldon. Howard and Raj start a band.
11 January 2018

Episode 14
The Separation Triangulation
Raj meets a girl who is his new love but meanwhile finds something about her that he did not realize.
18 January 2018

Episode 15
The Novelization Correlation
Leonard's book raises questions, and Amy guest stars on the new Professor Proton show.
01 February 2018

Episode 16
The Neonatal Nomenclature
When Bernadette won't go into labor, the gang try different tactics to get things started. Also, Wolowitz confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.
01 March 2018

Episode 17
The Athenaeum Allocation
Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy. Also, Bernadette and Wolowitz have a hard time deciding who should stay at home with the kids and who should go back to work.
08 March 2018

Episode 18
The Gates Excitation
Leonard, Howard and Raj try to meet Bill Gates, who's meeting with Penny to merge their companies; Sheldon thinks he's the victim of an April Fool's prank.
30 March 2018

Episode 19
The Tenant Disassociation
Leonard runs against Sheldon to be president of the tenants association; Wolowitz and Koothrappali find a drone in the backyard.
05 April 2018

Episode 20
The Reclusive Potential
Sheldon takes the guys to a cabin in the middle of nowhere to meet a reclusive scientist; Penny and Bernadette improvise Amy's bachelorette party.
12 April 2018

Episode 21
The Comet Polarization
Sheldon's comic book store experience changes when writer Neil Gaiman puts Stuart's store on the map; friendships are threatened when Koothrappali takes credit for Penny's astronomical discovery.
19 April 2018

Episode 22
The Monetary Insufficiency
Sheldon goes to Vegas to win money for science. Also, Penny and Bernadette take Amy wedding dress shopping, but her terrible choice entangles them in a web of lies.
26 April 2018

Episode 23
The Sibling Realignment
Sheldon and Leonard make a road trip to wrangle a reluctant wedding guest.
03 May 2018

Episode 24
The Bow Tie Asymmetry
When Amy's parents and Sheldon's family arrive, everybody is focused to make sure all wedding arrangements go according to plan - everyone except the bride and groom.
10 May 2018

Episode 1
The Conjugal Configuration
After their wedding, Amy and Sheldon go on their honeymoon.
24 September 2018

Episode 2
The Wedding Gift Wormhole
Leonard and Penny give Sheldon and Amy a baffling wedding gift.
27 September 2018

Episode 3
The Procreation Calculation
The Wolowitzes' life gets complicated when Stuart starts bringing his new girlfriend home. Also, Penny and Leonard talk about starting a family while Koothrappali explores an arranged marriage.
04 October 2018

Episode 4
The Tam Turbulence
Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, so Leonard takes matters into his own hands. Also, Bernadette and Penny take out Raj's fiancée, Anu, for dinner to get the skinny on her.
11 October 2018

Episode 5
The Planetarium Collision
Amy doesn't have time to work with Sheldon on super asymmetry, so he goes to great lengths to ensure she's available. Koothrappali doesn't want Wolowitz to join him in hosting a show at the planetarium.
18 October 2018

Episode 6
The Imitation Perturbation
When Wolowitz dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party. Also, Leonard is shocked that Penny doesn't remember their first kiss.
25 October 2018

Episode 7
The Grant Allocation Derivation
Leonard is caught between a rock and a hard place when he's responsible for distributing extra grant money. Also, Bernadette turns the backyard playhouse into a hideaway from her husband and kids.
02 November 2018

Episode 8
The Consummation Deviation
Sheldon tries to bond with Amy's father, but when Wolowitz lures Mr. Fowler away with magic tricks, Sheldon has no choice but to bond with Mrs. Fowler. Also, Koothrappali and Anu try to get physical for the first time.
08 November 2018

Episode 9
The Citation Negation
Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been discovered and disproved. Bernadette wants to beat Howard in a popular video game.
15 November 2018

Episode 10
The VCR Illumination
A VHS tape from Sheldon's past inspires him and Amy not to give up when they're still feeling down about their theory being disproven.
06 December 2018

Episode 11
The Paintball Scattering
Penny and Leonard organize a paintball game, which results in mayhem when Sheldon becomes jealous of Amy. Raj catches Anu with her ex-boyfriend. Stuart doesn't want to move in with Denise.
03 January 2019

Episode 12
The Propagation Proposition
Penny's ex-boyfriend Zack learns that he is infertile, so he asks Leonard for help; Koothrappali attempts to mend things with his ex-fiancee Anu.
10 January 2019

Episode 13
The Confirmation Polarization
Sheldon and Amy are thrilled when their super asymmetry theory is proven by two physicists, until they try to kick Amy off the Nobel nomination. Bernadette gets one of her drugs approved and wants a reluctant Penny to head the sales team.
17 January 2019

Episode 14
The Meteorite Manifestation
Howard and Bernadette's new neighbor Andy, an otherwise seemingly nice man, has built a porch overlooking their back yard, in combination with his motion activated flood light which has totally invaded any privacy they had in their backyard. Going down to city hall to investigate, they discover that they have to go through a bureaucratic quagmire just to learn if Andy obtained a permit for the porch, and if not a separate bureaucratic quagmire to see if the porch in any way contravenes zoning. T
31 January 2019

Episode 15
The Donation Oscillation
Penny tries to throw a wrench into Leonard's plan to be a sperm donor for her ex-boyfriend; Wolowitz, Bernadette, Anu and Koothrappali turn Koothrappali's canceled bachelor party into a couple's trip aboard the "vomit comet."
07 February 2019

Episode 16
The D & D Vortex
The gang finds out Wil Wheaton hosts a celebrity Dungeons and Dragons game involving William Shatner, Joe Manganiello, Kareem Abdul-Jabbar and Kevin Smith. Deception and betrayal are the path to make it to the one open seat.
21 February 2019

Episode 17
The Conference Valuation
Bernadette and Penny travel to San Diego for a pharmaceutical sales convention. Back home, Amy and the guys experiment on the Wolowitz children when Sheldon finds a book on it.
07 March 2019

Episode 18
The Laureate Accumulation
Rivals Pemberton and Campbell charm America on a publicity tour so Sheldon and Amy try to win over Nobel laureates Kip Thorne, George Smoot and Frances Arnold. Halley's fear of the dark causes opportunity and conflict at the Wolowitz home.
04 April 2019

Episode 19
The Inspiration Deprivation
The concept of what it would mean for women everywhere if Amy were to win a Nobel Prize causes Amy to have a meltdown. Also, Koothrappali and Wolowitz try to relive the good old days after Wolowitz buys a scooter that looks like the one he had years ago.
18 April 2019

Episode 20
The Decision Reverberation
Koothrappali is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life; Leonard wants to be the principal investigator on a plasma physics study.
25 April 2019

Episode 21
The Plagiarism Schism
Kripke has proof that Dr. Pemberton plagiarized his thesis in college, and Sheldon and Amy aren't sure if they should turn him in or not. Also, Wolowitz is happily surprised to learn that Bernadette wasn't the only waitress at the Cheesecake Factory who had a crush on him back in the day.
02 May 2019

Episode 22
The Maternal Conclusion
Leonard is pleasantly surprised when Beverly comes to visit and she's genuinely kind to him, until he finds out the real reason she's there. Also, Denise and Stuart overstay their welcome at the Wolowitz house.
09 May 2019

Episode 23
The Change Constant
Sheldon and Amy await big news.
16 May 2019

Episode 24
The Stockholm Syndrome
Bernadette and Wolowitz leave their kids for the first time; Penny and Leonard try to keep a secret; Sheldon and Amy stick together; and Koothrappali makes a new friend, as the gang travels together into an uncharted future.
16 May 2019