"The Roommate Transmogrification"

Raj moves in with Sheldon on the fourth season finale of The Big Bang Theory. This takes Penny by surprise.

  • 4.0 / 5.0
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"The Engagement Reaction"

When Howard finally breaks the news to his mom that he's engaged to Bernadette, it lands her in the hospital.

  • 3.0 / 5.0
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"The Wildebeest Implementation"

Raj attempts to cure his social anxiety disorder while Penny uses Bernadette to spy on Leonard and his girlfriend.

  • 4.0 / 5.0
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"The Agreement Dissection"

When Priya uses her lawyer skills to pick apart the roommate agreement, the girls take Sheldon dancing on this episode of TBBT.

  • 4.5 / 5.0
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"The Herb Garden Germination"

Sheldon and Amy spread gossip this week. Elsewhere, Howard takes a big step in his relationship with Bernadette.

  • 4.0 / 5.0
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"The Zarnecki Incursion"

Someone has the gall to hack into Sheldon's online game account this week. The guy go on a search to find out who would dare do such a thing.

  • 4.0 / 5.0
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"The Prestidigitation Approximation"

Wolowitz baffles Sheldon this week with a magic trick. Elsewhere, Leonard realizes that there's a problem with him dating Priya.

  • 3.5 / 5.0
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"The Toast Derivation"

Sheldon struggles with a realization on this episode: Leonard who is actually the center of the social group.

  • 3.5 / 5.0
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"The Cohabitation Formulation"

Wolowitz considers going all the way with Bernadette this week. Elsewhere, Leonard rekindles his relationship with Raj's sister.

  • 4.0 / 5.0
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"The Benefactor Factor"

A donor is willing to give Leonard a lot of money this week. In exchange for sex from him, that is.

  • 3.5 / 5.0
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TBBT Quotes

Penny: Hey, Sheldon, did you change your Wi-Fi password again?
Sheldon: Yes, it's "Penny, get your own Wi-Fi." No spaces.

Sheldon: Why are you crying?
Penny: Because I'm stupid!
Sheldon: Well that's no reason to cry; one cries because one is sad. For example, I cry because others are stupid and it makes me sad.