Raj chills with Leonard and Penny on the sixth season premiere of The Big Bang Theory, titled "The Date Night Variable."
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The Big Bang Theory boys are back! This is a photo from the Season 6 premiere.
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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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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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Sheldon is a nice guy. But he can also be a very demanding friend toward Leonard, as evidenced here.
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They're back together! All seems right in the world when Penny is dating Leonard, don't you agree?
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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 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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TBBT Quotes

Howard: Attention people of Earth: Tonight, there will be two moons in the sky.

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.