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 December 2025.
Last episode
25:00
25:00The Big Bang Theory
The Proton Transmogrification: Sheldon struggles to process his feelings of grief when his idol Professor Proton passes away. The gang gather to celebrate Star Wars Day. (S7 Ep22)
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30:00The Anything Can Happen Recurrence: Penny and Leonard distract Sheldon from his career problems by reinstating Anything Can Happen Thursday. Raj asks for Howard's advice. (S7 Ep21)
Series 4
30:00
30:00The Love Car Displacement: Howard feels threatened when Bernadette runs into her hulk of an ex-boyfriend at a science conference. (S4 Ep13)
30:00The Bus Pants Utilization: Leonard and Sheldon fight for control of an idea for an app. (S4 Ep12/24)
30:00The Justice League Recombination: The guys slowly warm to Zack and find an enjoyable way to bond with him when they enter a New Year's Eve fancy dress competition together. (S4 Ep11)
30:00The Alien Parasite Hypothesis: Amy realises that she has romantic feelings for Zack. Raj and Howard compete to prove who would make the better superhero. (S4 Ep10)
30:00The Boyfriend Complexity: When Penny's father visits, Leonard discovers that her parents still think that he and Penny are a couple, so he takes advantage of the situation. (S4 Ep9)
30:00The 21-Second Excitation: The gang's plans to attend a film screening are scuppered by Sheldon's nemesis Wil Wheaton. Penny and Bernadette invite Amy to her first slumber party. (S4 Ep8)
30:00The Apology Insufficiency: Leonard thinks his dating problems are due to a lack of confidence, and vows to be self-assured around attractive women. Howard is called by the FBI. (S4 Ep7)
30:00The Irish Pub Formulation: A visit from Raj's sister Priya creates tension among the guys, especially when Leonard asks Sheldon to conceal his romantic past with her. (S4 Ep6)
35:00The Desperation Emanation: Leonard realises he's the only one of the gang with no girlfriend. Sheldon wants to get rid of his when she hatches a plan for him to meet her mother. (S4 Ep5)
25:00The Hot Troll Deviation: An embarrassing secret of Howard's comes to light as he tries to win back Bernadette. Sheldon and Raj have trouble working together. (S4 Ep4)
35:00The Zazzy Substitution: The guys are concerned when a heartbroken Sheldon starts bulk buying cats after he breaks up with Amy, so Leonard tries to get Sheldon's mother to visit. (S4 Ep3)
25:00The Cruciferous Vegetable Amplification: Sheldon realises that he won't live long enough to download his consciousness into a robot body, so he tries to extend his lifespan. (S4 Ep2)
30:00The Robotic Manipulation: Penny tags along to Sheldon's first date with a woman he's been texting for months. Howard finds a new use for a robotic arm. (S4 Ep1)
Series 7 25:00
25:00The Relationship Diremption: Sheldon wonders whether he's wasting his time with his study of string theory. Raj and Emily go on a double date with Howard and Bernadette. (S7 Ep20)
30:00The Indecision Amalgamation: Raj has a dating dilemma. Penny can't decide whether to accept a role in a terrible film. Sheldon chooses between two gaming systems. (S7 Ep19)
Series 3 30:00
30:00The Lunar Excitation: Raj registers Sheldon for online dating and finds the perfect match: the female version of Sheldon. Penny seduces Leonard while she's drunk. (S3 Ep23)
30:00The Staircase Implementation: Leonard tells Penny about how he and Sheldon became friends, and the origins of the roommate agreement. (S3 Ep22)
30:00The Plimpton Stimulation: When Sheldon meets a famous physicist online, he invites her over to the apartment, where she spends her time flirting with Leonard. (S3 Ep21)