The Big Bang Theory

Thursdays 8:00 PM on CBS
The big bang theory
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  • 4.7 / 5.0
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Rating: 4.0 / 5.0 (59 Votes)
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Sheldon pays a surprise visit to his mother and sees her having sex through the window. He doesn't handle it well. He eventually accepts it with Howard's help.

At home, Raj plans a murder mystery party, but it's a bomb. No one has any fun. It causes disagreements between Penny and Leonard over their future.

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