The Big Bang Theory (2006)

8.4 / 10

A woman who moves into an apartment across the hall from two brilliant but socially awkward physicists shows them how little they know about life outside of the laboratory.

Country United States

Genre Comedy, Romance

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Seasons

Season 4 episodes

The Zazzy Substitution

3. The Zazzy Substitution

Following his 'breakup' with Amy, the gang become concerned with Sheldon's obsessive search for non-human companionship and call his mother to intervene.

The Hot Troll Deviation

4. The Hot Troll Deviation

Howard tries to get Penny's help in winning back Bernadette, but first has to confess the embarrassing reason why they broke up in the first place. Raj and Sheldon clash over a desk.

The Desperation Emanation

5. The Desperation Emanation

Sheldon is scared that he is in a relationship when Amy asks him to meet her mother, and Leonard asks Howard and Bernadette to set him up because he is the only person in the group without a girlfriend.

The Irish Pub Formulation

6. The Irish Pub Formulation

Leonard tries to keep everyone from finding out that he spent the night with Raj's sister, but Sheldon finds out and concocts an elaborate story to help him keep the secret from Raj.

The Alien Parasite Hypothesis

10. The Alien Parasite Hypothesis

Amy finds she has sexual feelings for Penny's ex-boyfriend Zack, while Raj and Howard try to prove who would be the better superhero.

The Bus Pants Utilization

12. The Bus Pants Utilization

Leonard has an idea for a new smartphone app and asks the guys for help, however Sheldon tries to take over the project, and Leonard fires him.

The Benefactor Factor

15. The Benefactor Factor

To secure needed funding for the university, Sheldon convinces Leonard to get friendly with a wealthy benefactor.

The Toast Derivation

17. The Toast Derivation

Sheldon becomes concerned when everybody begins to hang out at Raj's apartment and discovers Leonard is the center of the group.

The Prestidigitation Approximation

18. The Prestidigitation Approximation

Priya forces Leonard to choose between a relationship with her or a friendship with Penny. A magic trick by Howard has Sheldon fooled.

The Zarnecki Incursion

19. The Zarnecki Incursion

The guys go all out to help Sheldon find the person responsible for hacking his online gaming account, while the girls' hatred for Priya increases.

The Herb Garden Germination

20. The Herb Garden Germination

Sheldon and Amy secretly experiment on the gang by spreading rumors when they hear that Bernadette is thinking about breaking up with Howard.

The Agreement Dissection

21. The Agreement Dissection

When Priya finds a loophole in the roommate agreement to throw Sheldon out for the night, Penny, Amy and Bernadette take him to a nightclub.

The Wildebeest Implementation

22. The Wildebeest Implementation

Sheldon invents a three-player chess game, Penny and Amy use Bernadette to spy on Leonard and Priya, and Raj tries a new drug to treat his social anxiety.

The Roommate Transmogrification

24. The Roommate Transmogrification

Raj moves in with Sheldon after hearing Leonard and Priya engage in a Star Trek fantasy in his apartment. Bernadette receives her doctorate.

Tech Specs

Languages: Mandarin, English, Hindi, Italian, Russian, Klingon

Release Date: 01 May 2006 (United States) See more

Also Known As: BG See more