Can Leonard and Penny hang out alone? That's their goal in this Big Bang Theory scene.
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Amy is unhappy on the episode "The Isolation Permutation." That's because she is left out of wedding dress shopping.
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Laurie Metcalf is seen here as Sheldon's mom. She is rather popular within the group.
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Yikes! Sheldon reacts to the scariest balloon ever in this Big Bang Theory still.
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Wil Wheaton is back! And he's hosting a party at his house here.
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The boys are concerned about Raj here, but all we be okay. He meets a girl he can actually talk to on "The Wiggly Finger Catalyst."
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You're looking at a photo from "The Pulled Groin Extrapolation." Sheldon and Leonard have a lot to discuss.
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You're looking at a scene from The Infestation Hypothesis. It's episode two of season five.
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Leonard confronts Penny in this scene from the season five premiere of The Big Bang Theory. She sure finds something funny!
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The gang is all here. And we mean everyone! Check out this scene from the fifth season premiere of The Big Bang Theory.
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This is awkward for everyone. Raj and Penny stand in front of the boys on the fifth season premiere.
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Sheldon takes charge of the paintball team on the season five opener. Is this really a good idea?
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TBBT Quotes

Sheldon: Why do people cry at weddings?
Mary: They're practicing for what's coming later.

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