The Big Bang Theory

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Watch The Big Bang Theory Season 4 Episode 6 online via TV Fanatic with over 2 options to watch the The Big Bang Theory S4E6 full episode. Affiliates with free and paid streaming include Amazon and iTunes.

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Episode Details

A major secret abounds this week, as Leonard keeps quiet about an affair with Raj's sister. Will Sheldon keep the secret?

Rating: 4.4 / 5.0 (26 Votes)
Episode Number:

The Big Bang Theory Season 4 Episode 6 Quotes

Leonard: You know what happens when you yawn in public...
Sheldon: Everyone will see my oddly shaped uvela.

Raj: Hands off my sister.
Sheldon: Why would I touch her? She's covered in airplane germs.

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