The Big Bang Theory
About the Show
Arch-nerds Leonard and Sheldon may know more than their fair share about subatomic particles, but when it comes to people in general, and women in particular, they're absolutely clueless...
Series 3 Summary
Leonard, Sheldon, Howard and Raj return from their expedition to the North Pole, and revert back to (relatively) normal life. Leonard continues to pine over Penny - only with a little more success this time around - while Sheldon carries on broadcasting his unmatched and unwelcome genius to everyone in earshot.
Episode 1 - The Electric Can Opener Fluctuation
The Electric Can Opener Fluctuation: Leonard's attempts to woo Penny are constantly thwarted, while Sheldon heads to Texas after learning that his friends meddled with his expedition data.
Episode 2 - The Jiminy Conjecture
The Jiminy Conjecture: Leonard and Penny feel awkward around each other after their romantic liaison, while Sheldon and Howard take bets to determine a species of cricket.
Episode 3 - The Gothowitz Deviation
The Gothowitz Deviation: Sheldon tries to modify Penny's behaviour and rewards her with chocolate, while Howard and Raj go to a goth nightclub.
Episode 4 - The Pirate Solution
The Pirate Solution: Raj must find a job or he'll be sent back to India so begrudgingly he accepts an offer of work from Sheldon. Leonard and Penny try to get some time for themselves.
Episode 5 - The Creepy Candy Corollary
Sheldon enters a competition that pits him sagainst Star Trek actor Wil Wheaton, whom Sheldon considers his arch-enemy after he snubbed him as a child at a Star Trek convention.
Episode 6 - The Cornhusker Vortex
The Cornhusker Vortex: Sheldon teaches Leonard about football so that he can fit in with Penny's friends, but Leonard alienates the group with his new knowledge.
Episode 7 - The Guitarist Amplification
The Guitarist Amplification: Sheldon is annoyed when Leonard and Penny argue about Penny's male friend staying over and he has to act as peacemaker.
Episode 8 - The Adhesive Duck Deficiency
The Adhesive Duck Deficiency: Leonard, Raj and Howard go on a camping trip that alters their minds. Penny dislocates her shoulder when she slips in the shower.
Episode 9 - The Vengeance Formulation
The Vengeance Formulation: Howard is scared about committing to Bernadette so he avoids her. Then he realises he's made a mistake and, to compensate, he proposes to her.
Episode 10 - The Gorilla Experiment
The Gorilla Experiment: Penny feels left out when Bernadette asks Sheldon to teach her about science. And Howard is jealous when Bernadette asks Leonard about his work.
Episode 11 - The Maternal Congruence
The Maternal Congruence: Leonard is horrified when his mother turns up unannounced, and then he finds out that Sheldon knew about the visit.
Episode 12 - The Psychic Vortex
The Psychic Vortex: Sheldon and Raj go to a university party, Leonard disapproves of Penny's belief in psychics, and Raj lusts after a girl called Abby.
Episode 13 - The Bozeman Reaction
Leonard and Sheldon's flat is burgled. Determined to out-wit any thieves, the gang work on creating a state-of-the-art security system to protect the apartment. Can they deter the burglars?
Episode 14 - The Einstein Approximation
The Einstein Approximation: Sheldon is baffled by a formula he's working on, so he gets a less mentally taxing job at the Cheesecake Factory to kick-start his creativity.
Episode 15 - The Large Hadron Collision
The Large Hadron Collision: Sheldon is gutted when Leonard asks Penny to go to Switzerland to see the world's largest particle accelerator instead of him.
Episode 16 - The Excelsior Acquisition
The Excelsior Acquisition: Sheldon is summoned to court for driving through a red light. He misses the chance to meet Stan Lee and riles the judge. Will he go to prison?
Episode 17 - The Precious Fragmentation
The Precious Fragmentation: The gang squabble over a ring that they believe was used in The Lord of the Rings movies, while Sheldon seems to be turning into Gollum.
Episode 18 - The Pants Alternative
The Pants Alternative: Sheldon has been awarded a prestigious prize but is scared of collecting the award at a ceremony because he knows he'll have to make a speech.
Episode 19 - The Wheaton Recurrence
The Wheaton Recurrence: Leonard tells Penny that he loves her. The gang go bowling and find that Sheldon's enemy Wil Wheaton is playing in the opposing team.
Episode 20 - The Spaghetti Catalyst
The Spaghetti Catalyst: Sheldon hides his friendship with Penny from Leonard but his cover is soon blown. Can he remain friends with both Penny and Leonard?
Episode 21 - The Plimpton Stimulation
The Plimpton Stimulation: Sheldon meets a famous physicist online and invites her over to the flat, where she spends her time flirting with Leonard.
Episode 22 - The Staircase Implementation
This episode flashes back to the start of Sheldon and Leonard friendship seven years previously and explains the housemate agreement.
Episode 23 - The Lunar Excitation
The 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.
The Big Bang Theory synopsis
Arch-nerds Leonard and Sheldon may know more than their fair share about subatomic particles, but when it comes to people in general, and women in particular, they're absolutely clueless...Episode Guide >
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