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S12:E1 The Conjugal Configuration

The Big Bang Theory
09/24/2018 08:00 pm EDT

Sheldon and Amy's honeymoon runs aground in New York, while Penny and Leonard discover they are uncomfortably similar to ...read more Sheldon and Amy's honeymoon runs aground in New York, while Penny and Leonard discover they are uncomfortably similar to Amy's parents, Mr. and Mrs. Fowler. Also, Koothrappali insults physicist Neil deGrasse Tyson and starts a Twitter war. show less

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S12:E2 The Wedding Gift Wormhole

The Big Bang Theory
09/27/2018 08:00 pm EDT

Sheldon and Amy drive themselves crazy trying to figure out what "perfect gift" Leonard and Penny gave them for their ...read more Sheldon and Amy drive themselves crazy trying to figure out what "perfect gift" Leonard and Penny gave them for their wedding. Also, Koothrappali decides he wants to settle down and asks his father to arrange a marriage for him. show less

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S12:E3 The Procreation Calculation

The Big Bang Theory
10/04/2018 08:00 pm EDT

The Wolowitzes' life gets complicated when Stuart starts bringing his new girlfriend home. Also, Penny and Leonard talk ...read more 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. show less

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S12:E4 The Tam Turbulence

The Big Bang Theory
10/11/2018 08:00 pm EDT

When Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, Leonard takes matters into his ...read more When Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, 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. show less

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S12:E5 The Planetarium Collision

The Big Bang Theory
10/18/2018 08:00 pm EDT

When Amy doesn't have time to work on super-asymmetry, Sheldon goes to great lengths to ensure she's available to work ...read more When Amy doesn't have time to work on super-asymmetry, Sheldon goes to great lengths to ensure she's available to work with him even it if means accidentally sabotaging her career in the process. Also, Koothrappali doesn't want Wolowitz to join him in hosting a show at the planetarium. show less

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S12:E6 The Imitation Perturbation

The Big Bang Theory
10/25/2018 08:00 pm EDT

When Wolowitz dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party. Also, ...read more 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. show less

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S12:E7 The Grant Allocation Derivation

The Big Bang Theory
11/01/2018 08:00 pm EDT

Leonard is caught between a rock and a hard place when he's responsible for distributing extra grant money. Also, Bernadette ...read more 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. show less

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S12:E8 The Consummation Deviation

The Big Bang Theory
11/08/2018 08:00 pm EST

Sheldon tries to bond with Amy's father, but when Wolowitz lures Mr. Fowler away with magic tricks, Sheldon has no choice ...read more 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. show less

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S12:E9 The Citation Negation

The Big Bang Theory
11/15/2018 08:00 pm EST

Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been discovered and ...read more Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been discovered and disproven. Also, ultra-competitive Bernadette asks Stuart's girlfriend, Denise, to teach her how to beat Howard in a popular videogame. show less

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S12:E10 The VCR Illumination

The Big Bang Theory
12/06/2018 08:00 pm EST

Sheldon and Amy are still down about their theory being disproven, but a VHS tape from Sheldon's past inspires him not to ...read more Sheldon and Amy are still down about their theory being disproven, but a VHS tape from Sheldon's past inspires him not to give up. Also, Bernadette turns into a pageant mom when she tries to help Wolowitz ace his Magic Castle audition. show less

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S12:E11 The Paintball Scattering

The Big Bang Theory
01/03/2019 08:00 pm EST

Penny and Leonard organize a paintball game that results in mayhem when Sheldon is jealous of Amy. Also, Koothrappali catches ...read more Penny and Leonard organize a paintball game that results in mayhem when Sheldon is jealous of Amy. Also, Koothrappali catches Anu with her ex-boyfriend, and Stuart doesn't want to move in with Denise. show less

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S12:E12 The Propagation Proposition

The Big Bang Theory
01/10/2019 08:00 pm EST

Penny's ex-boyfriend, Zack, and his wife want a baby, but when Zack is infertile, they ask Leonard for help. Also, ...read more Penny's ex-boyfriend, Zack, and his wife want a baby, but when Zack is infertile, they ask Leonard for help. Also, Koothrappali attempts to mend things with his ex-fiancée, Anu. show less

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S12:E13 The Confirmation Polarization

The Big Bang Theory
01/17/2019 08:00 pm EST

When Sheldon and Amy's super asymmetry theory is proven by two physicists, Dr. Pemberton and Dr. Campbell from Chicago, ...read more When Sheldon and Amy's super asymmetry theory is proven by two physicists, Dr. Pemberton and Dr. Campbell from Chicago, they're thrilled, until they try to kick Amy off the Nobel nomination. Also, Bernadette has a big success at work and Penny's going to be a part of it – whether she wants to or not. show less

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S12:E14 The Meteorite Manifestation

The Big Bang Theory
01/31/2019 08:00 pm EST

Sheldon is thrilled to help Bernadette and Wolowitz navigate bureaucratic paperwork, until he discovers they are breaking the ...read more Sheldon is thrilled to help Bernadette and Wolowitz navigate bureaucratic paperwork, until he discovers they are breaking the law. Also, Leonard is disappointed when his friends exclude him from a scientific project. show less

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S12:E15 The Donation Oscillation

The Big Bang Theory
02/07/2019 08:00 pm EST

Penny tries to seduce an abstaining Leonard to ruin his "donation" for her ex-boyfriend, Zack, and his wife, Marissa. ...read more Penny tries to seduce an abstaining Leonard to ruin his "donation" for her ex-boyfriend, Zack, and his wife, Marissa. Also, Wolowitz, Bernadette, Anu and Koothrappali turn Koothrappali's canceled bachelor party into a couple's trip aboard the "vomit comet,". show less

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S12:E16 Th e D & D Vortex

The Big Bang Theory
02/21/2019 08:00 pm EST

When the gang finds out Wil Wheaton hosts a celebrity Dungeons and Dragons game involving William Shatner, Joe Manganiello, ...read more When 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. show less

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S12:E17 The Conference Valuation

The Big Bang Theory
03/07/2019 08:00 pm EST

When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is in charge of the kids. Also, ...read more When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is in charge of the kids. Also, Sheldon finds a book on experimenting on kids, and the guys plus Amy make a day of it. show less

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S12:E18 The Laureate Accumulation

The Big Bang Theory
04/04/2019 08:00 pm EDT

When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to bring Nobel laureates Kip ...read more When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to bring Nobel laureates Kip Thorne, George Smoot and Frances Arnold to their side. Also, Halley's fear of the dark leads to opportunity and conflict for Howard, Bernadette and Stuart. show less

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S12:E19 The Inspiration Deprivation

The Big Bang Theory
04/18/2019 08:00 pm EDT

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, ...read more 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. show less

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S12:E20 The Decision Reverberation

The Big Bang Theory
04/25/2019 08:00 pm EDT

Koothrappali is worried people won't take him seriously in his own field after publishing a paper that suggests he may have ...read more 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. Also, Leonard wants to be the principal investigator on a plasma physics study. show less

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S12:E21 The Plagiarism Schism

The Big Bang Theory
05/02/2019 08:00 pm EDT

Kripke has proof that Dr. Pemberton plagiarized his thesis in college, and Sheldon and Amy aren't sure if they should turn ...read more 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. show less

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S12:E22 The Maternal Conclusion

The Big Bang Theory
05/09/2019 08:00 pm EDT

Leonard is pleasantly surprised when Beverly comes to visit and she's genuinely kind to him, until he finds out the real ...read more 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. show less

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S12:E23 The Change Constant

The Big Bang Theory
05/16/2019 08:00 pm EDT

Sheldon and Amy await big news

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S12:E24 The Stockholm Syndrome

The Big Bang Theory
05/16/2019 08:30 pm EDT

Bernadette and Wolowitz leave their kids for the first time; Penny and Leonard try to keep a secret; Sheldon and Amy stick ...read more 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. Series Finale show less

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S12:E25 Unraveling the Mystery: A Big Bang Farewell

The Big Bang Theory
05/16/2019 09:30 pm EDT

During this 30-minute special retrospective, series stars Johnny Galecki and Kaley Cuoco take viewers behind the scenes of the ...read more During this 30-minute special retrospective, series stars Johnny Galecki and Kaley Cuoco take viewers behind the scenes of the longest-running multi-camera comedy series in television history.In the special, Galecki and Cuoco will lead fans on a trip down memory lane, sharing some of the best-kept backstage secrets and personal memories from the past 12 years. They will reveal their favorite moments playing beloved characters Leonard and Penny, and revisit some of the most memorable stories from "The Big Bang Theory Stage." In addition, the special will feature a tour of the iconic sets, including Leonard and Sheldon's apartment. show less