Sheldon and Amy Play Doctor

Sheldon and Amy Play Doctor

Amy dresses up in a Star Trek outfit and plays doctor. Sheldon says he doesn't like it, but tells her to keep at it.
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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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Howard Must Reschedule

Howard Must Reschedule

Howard finds out he must reschedule his wedding on this episode of The Big Band Theory. "The Launch Acceleration" is the 23rd installment of the show's 5th season.
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Penny, Amy, & Bernadette Read Unsettling News

Penny, Amy, & Bernadette Read Unsettling News

Bernadette reconsiders getting married when she and the girls see Howard's sexual history posted online on The Big Bang Theory. "The Stag Convergence" is the 22nd installment of the show's 5th season.
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Stephen Hawking on The Big Bang Theory

Stephen Hawking on The Big Bang Theory

Sheldon can now die happy. On this episode of The Big Bang Theory, he meets Stephen Hawking!
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The Future Mrs. Koothrappali?

The Future Mrs. Koothrappali?

Has Raj met the future Mrs. Koothrappali? He sure thinks so in this scene from The Big Bang Theory.
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Playing Video Games

Playing Video Games

Sheldon is seen here playing video games. Instead of going to Amy's aunt's birthday party, that is.
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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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Pretty Painting

Pretty Painting

What, is this a weird gift? Amy really doesn't see anything wrong with is.
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Sheldon in the Lab

Sheldon in the Lab

Sheldon works here with Amy in the lab. This is his version of a vacation.
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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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The Big Bang Theory Season 5 Quotes

You can't blame yourself. When your prefrontal cortex fails to make you happy promiscuity rewards you with the needed flood of dopamine. We, neurobiologists, refer to this as the skank reflex.

Amy

I feel like two totally different people. Dr. Jekyyl and Mrs. Whore.

Penny