Leonard and Sheldon are brilliant physicists, the kind of "beautiful minds" that understand how the universe works. But none of that genius helps them interact with people, especially women. All this begins to change when a free-spirited beauty named Penny moves in next door.
The Big Bang Theory Season 12 (2018-2019)
|12x01 The Conjugal Configuration |
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 ...
|Sep. 24, 2018|
|12x02 The Wedding Gift Wormhole |
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 ...
|Sep. 27, 2018|
|12x03 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 ...
|Oct. 04, 2018|
|12x04 The Tam Turbulence |
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, ...
|Oct. 11, 2018|
|12x05 The Planetarium Collision |
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 ...
|Oct. 18, 2018|
|12x06 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 ...
|Oct. 25, 2018|
|12x07 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 ...
|Nov. 01, 2018|
|12x08 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 ...
|Nov. 08, 2018|
|12x09 The Citation Negation |
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 ...
|Nov. 15, 2018|
|12x10 The VCR Illumination |
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 ...
|Dec. 06, 2018|
|12x11 The Paintball Scattering |
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 ...
|Jan. 03, 2019|
|12x12 The Propagation Proposition |
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, An ...
|Jan. 10, 2019|
|12x13 The Confirmation Polarization |
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 ...
|Jan. 17, 2019|
|12x14 The Meteorite Manifestation |
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 ...
|Jan. 31, 2019|
|12x15 The Donation Oscillation |
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 ...
|Feb. 07, 2019|
|12x16 The D & D Vortex |
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 ...
|Feb. 21, 2019|
|12x17 The Conference Valuation |
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 ...
|Mar. 07, 2019|
|12x18 The Laureate Accumulation |
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. ...
|Apr. 04, 2019|
|12x19 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 ...
|Apr. 18, 2019|
|12x20 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. Also, Leonard wants to be the principal ...
|Apr. 25, 2019|
|12x21 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 ...
|May. 02, 2019|
|12x22 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 ...
|May. 09, 2019|
|12x23 The Change Constant |
Sheldon and Amy await big news,
|May. 16, 2019|
|12x24 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 ...
|May. 16, 2019|
Season 12 Characters[none added]
Season 12 Videos[none added]
Season 12 Trivia[none added]
» Back to The Big Bang Theory Wiki