Cheers to a new set up. Raj moves in with Sheldon on the season finale of The Big Bang Theory.
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Can Leonard be friends with Penny while dating Priya? It might be a challenge.
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Who needs human companionship?!? Not Sheldon, this character hopes, on the episode titled "The Zazzy Substitution."
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Sheldon requires a chaperon on his first date when season four of The Big Bang Theory kicks off. Penny is chosen for the job.
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Poor Penny attempts to go bowling as Raj and Wolowitz watch on and drool.
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Penny and Leonard come outside to see Sheldon trapped by a net from the security system they installed.
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As usual, Leonard and Penny get into an argument. This time? About psychics.
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Sheldon helps decorate the tree and wants to add the bust of Sir Isaac Newton, which he argues is more Christmasy than Jesus.
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TBBT Quotes

I was expecting applause but I suppose stunned silence is equally appropriate.

Sheldon

Sheldon: Nothing more fun than a paradigm shifting evening of science.
Penny: (to Leonard) And you thought it was soaping me up in the shower.