The Big Bang Theory boldly crosses the frontiers of science and comedy in the twelfth season of television's perpetual laughter continuum. Drs. Hofstadter and Cooper remain socially challenged, but the two genius roommates and their friends Penny, Howard, Raj, Amy and Bernadette always produce hilarious results.
Sheldon and Amy are baffled by the gift Penny and Leonard got them for their wedding; and Raj decides he wants his father to find him an arranged marriage.
Sheldon and Amy are baffled by the gift Penny and Leonard got them for their wedding; and Raj decides he wants his father to find him an arranged marriage.
When Sheldon won't tell anyone why he's never mentioned Tam (ROBERT WU), his childhood best friend, Leonard takes matters into his own hands. JERRY O'CONNELL guest stars.
When Sheldon won't tell anyone why he's never mentioned Tam (ROBERT WU), his childhood best friend, Leonard takes matters into his own hands. JERRY O'CONNELL guest stars.
Leonard regrets his newfound authority at work when he's responsible for distributing grant money; and Bernadette turns the playhouse into her hideaway.
Leonard regrets his newfound authority at work when he's responsible for distributing grant money; and Bernadette turns the playhouse into her hideaway.
Sheldon and Amy are devastated to learn that Super-Asymmetry has already been disproven. Meanwhile, Bernadette has Stuart's girlfriend (LAUREN LAPKUS) teach her Fortnite.
Sheldon and Amy are devastated to learn that Super-Asymmetry has already been disproven. Meanwhile, Bernadette has Stuart's girlfriend (LAUREN LAPKUS) teach her Fortnite.
Sheldon seeks advice from the only person who can help him – his younger self (guest star IAIN ARMITAGE). And Bernadette helps Howard with a Magic Castle audition.
Sheldon seeks advice from the only person who can help him – his younger self (guest star IAIN ARMITAGE). And Bernadette helps Howard with a Magic Castle audition.
Penny & Leonard organize a paintball game that results in mayhem when Sheldon is jealous of Amy, Raj catches Anu with her ex, and Stuart doesn't want to move in with Denise.
Penny & Leonard organize a paintball game that results in mayhem when Sheldon is jealous of Amy, Raj catches Anu with her ex, and Stuart doesn't want to move in with Denise.
Penny's old boyfriend, Zack, and his wife want a baby, but when Zack is infertile, they ask Leonard to help. Meanwhile, Raj attempts to mend things with his ex-fiancée Anu.
Penny's old boyfriend, Zack, and his wife want a baby, but when Zack is infertile, they ask Leonard to help. Meanwhile, Raj attempts to mend things with his ex-fiancée Anu.
When Sheldon and Amy's Super Asymmetry Theory is proven by two physicists from Chicago, they're thrilled – until they try to kick Amy off their Nobel Prize nomination!
When Sheldon and Amy's Super Asymmetry Theory is proven by two physicists from Chicago, they're thrilled – until they try to kick Amy off their Nobel Prize nomination!
Penny tries to seduce an abstaining Leonard in an attempt to ruin his plan to be a sperm donor for her ex-boyfriend. While Howard, Bernadette, Raj & Anu board the "Vomit Comet."
Penny tries to seduce an abstaining Leonard in an attempt to ruin his plan to be a sperm donor for her ex-boyfriend. While Howard, Bernadette, Raj & Anu board the "Vomit Comet."
While Penny and Bernadette are away at a pharmaceutical sales convention in San Diego, Sheldon, Leonard, Howard, Raj and Amy experiment on the Wolowitz kids.
While Penny and Bernadette are away at a pharmaceutical sales convention in San Diego, Sheldon, Leonard, Howard, Raj and Amy experiment on the Wolowitz kids.
When Howard buys a scooter like the one he had years ago, he and Raj relive their glory days; meanwhile, Amy has a meltdown over possibly winning a Nobel.
When Howard buys a scooter like the one he had years ago, he and Raj relive their glory days; meanwhile, Amy has a meltdown over possibly winning a Nobel.
While Penny encourages Leonard to stand up for himself in a physics study, Raj is worried after publishing a paper suggesting he may have discovered alien life.
While Penny encourages Leonard to stand up for himself in a physics study, Raj is worried after publishing a paper suggesting he may have discovered alien life.
When Barry Kripke finds proof that Dr. Pemberton plagiarized his thesis in college, Sheldon and Amy try to take the high road in their quest for the Nobel Prize.
When Barry Kripke finds proof that Dr. Pemberton plagiarized his thesis in college, Sheldon and Amy try to take the high road in their quest for the Nobel Prize.
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.
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.
The Big Bang Theory boldly crosses the frontiers of science and comedy in the twelfth season of television's perpetual laughter continuum. Drs. Hofstadter and Cooper remain socially challenged, but the two genius roommates and their friends Penny, Howard, Raj, Amy and Bernadette always produce hilarious results.