The Big Bang Theory
The Big Bang Theory is a TV show on E4. Astronomically popular US sitcom. Nerdy flatmates Leonard and Sheldon know a lot about physics, but little about women. But when Penny moves in across the hall, that could all be about to change... The program has been available since 2025. A total of 279 episodes have been broadcast, most recently in November 2025.
Last episode
25:00
25:00The Big Bang Theory
The Fermentation Bifurcation: The gang run into Penny's ex-boyfriend, Zack, at a wine bar. Bernadette, who can't drink, hangs out with Sheldon. (S9 Ep22)
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30:00The Viewing Party Combustion: During a get-together to watch TV at the flat, a minor argument between Sheldon and Leonard escalates into a heated debate. (S9 Ep21)
30:00The Big Bear Precipitation: Sheldon shares a secret about Leonard when the two of them go on a weekend trip to a cabin in the country with Amy and Penny. (S9 Ep20)
30:00The Solder Excursion Diversion: Sheldon makes a surprise revelation when Amy buys him a new laptop. Leonard and Howard lie to their wives to avoid an errand. (S9 Ep19)
Series 6
30:00
30:00The Fish Guts Displacement: Sheldon begrudgingly takes care of Amy when she is sick. Bernadette arranges for Howard to go on a fishing trip with her macho father. (S6 Ep10)
Series 1 30:00
30:00The Hamburger Postulate: Leonard thinks he's been wasting his time on Penny, so he turns his attention to Leslie. Sheldon's uncomfortable with a change to his hamburger routine. (S1 Ep5)
30:00The Luminous Fish Effect: Getting fired forces Sheldon to ponder life outside physics, so Leonard has to take drastic action to snap his friend out of his reverie. (S1 Ep4)
30:00The Fuzzyboots Corollary: Leonard is upset when he discovers that Penny is seeing someone, so he plucks up the courage to ask a woman out on a date. (S1 Ep3)
30:00The Big Bran Hypothesis: Sheldon sneaks into Penny's flat to tidy it. She's not happy about it. (S1 Ep2)
35:00Pilot: The first ever episode of the hit sitcom. Leonard and Sheldon's geeky world is shaken up by the arrival of a beautiful new neighbour. (S1 Ep1)
Series 12 30:00
30:00The Imitation Perturbation: Howard dresses up as Sheldon for Halloween, so Sheldon gets revenge. Leonard is shocked that Penny can't recall their first kiss. (S12 Ep6)
30:00The Planetarium Collision: Sheldon accidentally sabotages Amy's career. Raj isn't keen when Howard's invited to host a show with him at the planetarium. (S12 Ep5)
25:00The Tam Turbulence: When Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, Leonard tries to find out more. (S12 Ep4)
35:00The Procreation Calculation: Stuart starts bringing his new girlfriend home to Howard and Bernadette's house. Penny and Leonard talk about starting a family. (S12 Ep3)
Series 6 25:00
25:00The Parking Spot Escalation: When non-driver Sheldon finds out that his unused parking space at the university has been reallocated to Howard, he feels undermined. (S6 Ep9)
30:00The 43 Peculiarity: The guys notice that Sheldon disappears for 20 minutes after lunch every day. Filled with curiosity, they attempt to work out what he's been doing. (S6 Ep8)
30:00The Habitation Configuration: Amy is upset when Sheldon fails to defend her in an argument with Wil Wheaton during the filming of a new episode of Fun with Flags. (S6 Ep7)
Series 3 30:00
30:00The Psychic Vortex: Sheldon and Raj go to a university party where Raj lusts after a girl called Abby. Leonard regrets telling Penny that he disapproves of her belief in psychics. (S3 Ep12)
30:00The Maternal Congruence: Leonard is horrified when his mother turns up unannounced for a Christmas visit, and then he finds out that Sheldon knew about her divorce before him. (S3 Ep11)
30:00The Gorilla Experiment: Howard and Penny are both jealous when Bernadette becomes fascinated with Leonard's physics project. (S3 Ep10)