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
30:00
30:00The Big Bang Theory
The Ornithophobia Diffusion: Leonard and Penny attempt to spend time together as friends without anybody else around, while Sheldon faces his fear of birds. (S5 Ep9)
Catching up on The Big Bang Theory?
Don't want to miss an episode anymore? Set up a free alarm and receive an email when new episodes are available. Handy!
30:00The Isolation Permutation: Amy is heartbroken when she finds out that Penny and Bernadette went on a shopping trip to buy bridesmaids' dresses without her. (S5 Ep8)
30:00The Good Guy Fluctuation: Leonard doubts his feelings for Priya when he kisses a woman he meets in the comic book shop. The gang pull pranks on Sheldon to celebrate Halloween. (S5 Ep7)
30:00The Rhinitis Revelation: Sheldon's mother Mary comes to town and soon becomes a firm favourite with his friends, much to Sheldon's annoyance. (S5 Ep6)
Series 2
30:00
30:00The White Asparagus Triangulation: Sheldon is delighted that Leonard has finally found a girlfriend who matches up to his high standards... Perhaps a little too delighted. (S2 Ep9)
30:00The Lizard-Spock Expansion: Howard is furious when a woman who he likes falls for Leonard, despite Howard's efforts to woo her. (S2 Ep8)
30:00The Panty Piñata Polarization: Sheldon bans Penny from the flat for numerous minor infractions, so she retaliates. Howard and Raj search for the America's Next Top Model house. (S2 Ep7)
30:00The Cooper-Nowitzki Theorem: Sheldon's friends are mystified when a younger student is attracted to him, and her intense devotion soon becomes too much to bear. (S2 Ep6)
Series 10 30:00
30:00The Long Distance Dissonance: The gang worry when Sheldon's former admirer, Dr Ramona Nowitzki, turns up while Amy is away working at Princeton. (S10 Ep24/24)
30:00The Gyroscopic Collapse: Amy is offered a fellowship at Princeton, Raj makes new living arrangements, and the guys' gyroscope project spins out of control. (S10 Ep23/24)
30:00The Cognition Regeneration: Leonard isn't happy when he finds out that Penny is considering accepting a job offer from her ex-boyfriend Zack. (S10 Ep22/24)
30:00The Separation Agitation: Howard and Bernadette are upset when they leave Halley at the nursery. Bert the geologist introduces his girlfriend to the gang. (S10 Ep21/24)
30:00The Recollection Dissipation: Sheldon collaborates on two projects - one with Leonard and Howard, plus another with Amy - pushing himself to the limit. (S10 Ep20)
30:00The Collaboration Fluctuation: Leonard, Penny and Raj settle into their new living arrangement, and Sheldon expresses an interest in Amy's professional life. (S10 Ep19)
30:00The Escape Hatch Identification: Leonard and Penny offer Sheldon's old room to Raj when he's forced to move out of his flat, leading to unexpected conflict. (S10 Ep18)
30:00The Comic-Con Conundrum: Cut off from his father's fortune, Raj appoints Sheldon to organise his finances. Penny considers joining the guys at Comic-Con. (S10 Ep17)
30:00The Allowance Evaporation: Amy is furious when she learns that Sheldon has shared intimate details of their relationship with his colleagues. (S10 Ep16)
30:00The Locomotion Reverberation: Leonard and Howard distract Sheldon with a trip to a historic railway when he slows their progress on the guidance system. (S10 Ep15)
Series 7 30:00
30:00The Romance Resonance: Sheldon is mortified when he stumbles upon an important scientific breakthrough by accident. Howard makes a romantic gesture to Bernadette. (S7 Ep6)
30:00The Workplace Proximity: Amy tells Sheldon she's been asked to work on a project at his university, but the guys insist that it will be bad for their relationship. (S7 Ep5)