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The Big Bang Theory
The Big Bang Theory Episodes
The Change Constant/the Stockholm Syndrome
In the hour-long series finale, Sheldon and Amy await big news, Howard and Bernadette leave their kids for the first time, Leonard and Penny try to keep a secret, and Raj makes ...
23-05-2019
Channel 4
The Maternal Conclusion
Leonard is surprised when his mother Beverly visits and is kind to him, until he finds out the real reason she's there. Denise and Stuart overstay their welcome at Howard and Be ...
16-05-2019
Channel 4
The Plagiarism Schism
When Barry Kripke finds proof that Dr Pemberton plagiarised his thesis in college, Sheldon and Amy aren't sure whether they should turn their rival in or not. Howard makes a hap ...
09-05-2019
Channel 4
The Decision Reverberation
Raj is worried that people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life. Penny encourages Leonard to stand ...
02-05-2019
Channel 4
The Inspiration Deprivation
Amy has a meltdown when she feels the pressure of what it would mean for women everywhere if she were to win a Nobel Prize. Howard buys a scooter that looks like the one he had ...
25-04-2019
Channel 4
The Laureate Accumulation
When their academic competitors charm America on a publicity tour, Sheldon and Amy try to bring some Nobel laureates to their side. Halley's fear of the dark affects Howard, Ber ...
18-04-2019
Channel 4
The Conference Valuation
Penny and Bernadette go to San Diego for a pharmaceutical sales convention, leaving Howard in charge of the children. Then Sheldon finds a book containing science experiments to ...
11-04-2019
Channel 4
The D & D Vortex
When the gang find out that Wil Wheaton is hosting a celebrity game of Dungeons & Dragons at his home, deception and betrayal take hold as they compete to occupy the one open se ...
28-03-2019
Channel 4
The Donation Oscillation
Penny attempts to sabotage Leonard's efforts to help her ex-boyfriend Zack and his wife Marissa have a family of their own. Raj's cancelled bachelor party turns into a couples' ...
21-03-2019
Channel 4
The Meteorite Manifestation
Sheldon is thrilled to help Howard and Bernadette navigate some bureaucratic paperwork, until he discovers they are breaking the law. Leonard is excluded from his friends' scien ...
14-03-2019
Channel 4
The Confirmation Polarization
Sheldon and Amy are thrilled when their super-asymmetry theory is proved correct by two physicists from Chicago. Bernadette enjoys some big success at work and plans for Penny t ...
07-03-2019
Channel 4
The Propagation Proposition
Penny's former boyfriend Zack and his wife want to have a baby, but when they encounter fertility problems, they ask Leonard for his help. Raj tries to patch things up with his ...
28-02-2019
Channel 4
The Paintball Scattering
Sheldon is jealous when Amy gets media attention, Raj spots Anu talking to her ex-boyfriend, Stuart is intimidated by the idea of moving in with Denise, and Penny and Leonard or ...
21-02-2019
Channel 4
The Vcr Illumination
Sheldon and Amy are still upset about their theory being disproven, but a VHS tape from Sheldon's past inspires him not to give up. Howard prepares his magic act for a very impo ...
20-12-2018
Channel 4
The Citation Negation
Sheldon and Amy are devastated to learn that super-asymmetry has already been discovered and disproven. Bernadette asks Stuart's girlfriend Denise to teach her how to beat Howar ...
13-12-2018
Channel 4
The Consummation Deviation
Sheldon tries to befriend Amy's father, but when Howard lures Mr Fowler away with his magic tricks Sheldon has no choice but to bond with Mrs Fowler. Meanwhile, Raj and Anu atte ...
06-12-2018
Channel 4
The Grant Allocation Derivation
Leonard is caught between a rock and a hard place when he is made responsible for distributing extra grant money. Bernadette turns the back garden playhouse into a hideaway ...
29-11-2018
Channel 4
The Imitation Perturbation
When Howard dresses up as Sheldon for Halloween, Sheldon gets his own back at Leonard and Penny's Halloween party. Meanwhile, Leonard is shocked that Penny doesn't remember thei ...
22-11-2018
Channel 4
The Planetarium Collision
When Amy doesn't have time to help Sheldon with his work, he goes to great lengths to ensure that she's available. Raj isn't keen when Howard is invited to join him to host a sh ...
15-11-2018
Channel 4
The Tam Turbulence
When Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, Leonard tries to find out. Penny and Bernadette invite Raj's fiancée Anu out for d ...
08-11-2018
Channel 4
The Procreation Calculation
Howard and Bernadette's life becomes complicated when Stuart starts bringing his new girlfriend home. Penny and Leonard talk about starting a family. Raj explores the possibilit ...
01-11-2018
Channel 4
The Wedding Gift Wormhole
Sheldon and Amy drive themselves to distraction trying to figure out what the 'perfect gift' is that Leonard and Penny got them for their wedding. Raj decides he wants to settle ...
25-10-2018
Channel 4
Series 12 Episode 1
Sheldon and Amy's honeymoon runs aground in New York. Penny and Leonard discover they are uncomfortably similar to Amy's parents. Raj starts a social media war with astrophysici ...
22-10-2018
Channel 4