Leonard & Sheldon Prepare For The Wedding

Leonard & Sheldon Prepare For The Wedding

Leonard and Sheldon are all dressed up for Howard and Bernadette's wedding on The Big Bang Theory. "The Countdown Reflection" is the 24th episode and season finale of the show's 5th season.
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What's Up with That Hair?

What's Up with That Hair?

Whoa, what's going on here?!? The gang looks down at Sheldon's odd hairstyle in this scene from The Big Bang Theory.
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Really, Sheldon?!?

Really, Sheldon?!?

Sheldon is a nice guy. But he can also be a very demanding friend toward Leonard, as evidenced here.
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Big Bang Couple

Big Bang Couple

They're back together! All seems right in the world when Penny is dating Leonard, don't you agree?
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A Romantic Evening

A Romantic Evening

It's a romantic evening for two on the 100th episode of The Big Bang Theory. We're very jealous of Leonard.
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The Big Bang Theory Boys

The Big Bang Theory Boys

The men of The Big Bang Theory do their thing in this shot from the sitcom. It's courtesy of the episode "The Shiny Trinket Maneuver."
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The Big Bang Theory Trio

The Big Bang Theory Trio

Leonard needs some advice in this Big Bang Theory scene. He has come face to face with his high school bully.
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Just the Two of Us

Just the Two of Us

Can Leonard and Penny hang out alone? That's their goal in this Big Bang Theory scene.
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Laurie Metcalf on The Big Bang Theory

Laurie Metcalf on The Big Bang Theory

Laurie Metcalf is seen here as Sheldon's mom. She is rather popular within the group.
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Party with Wil Wheaton

Party with Wil Wheaton

Wil Wheaton is back! And he's hosting a party at his house here.
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The Men of The Big Bang Theory

The Men of The Big Bang Theory

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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The Pulled Groin Extrapolation Scene

The Pulled Groin Extrapolation Scene

You're looking at a photo from "The Pulled Groin Extrapolation." Sheldon and Leonard have a lot to discuss.
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TBBT Quotes

Stephen Hawking: You made an arithmetic mistake on page two. It was quite a boner.
Sheldon: No, no ... that can't be right. I-I don't make arithmetic mistakes.
Stephen Hawking: Are you saying I do?
Sheldon: Oh, no, no, no, of course not. It's just, I was thinking.... Oh, gosh, golly, I made a boo-boo and I gave it to Stephen Hawking.
Stephen Hawking: Great, another fainter.

Sheldon: Why do you have the Chinese character for "soup" tattooed on your right buttock?
Penny: It's not "soup," it's "courage."
Sheldon: No it isn't. But I suppose it does take courage to demonstrate that kind of commitment to soup.
Penny: How'd you see it? You said you wouldn't look.
Sheldon: Sorry. As I told you, the hero always peeks.