Sheldon has a shirt made that says "The Wesley Crushers" for his bowl off with Wil Wheaton. Get it? No? Wheaton played Wesley on Star Trek.
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Sheldon goes up against Wil Wheaton in the ultimate bowl off between rivals.
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Poor Penny attempts to go bowling as Raj and Wolowitz watch on and drool.
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Sheldon goes up against his nemesis, a characterized version of Wil Wheaton, in bowling on The Big Bang Theory.
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Sheldon Cooper ends up taking off his pants during his acceptance speech after a few too many glasses of wine.
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The last of the nerds of The Big Bang Theory to let go of the ring of the power gets to keep it.
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The boys of The Big Bang Theory buy a box from a garage sale that includes an actual ring from The Lord of the Rings movies.
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Sheldon has a dream where he becomes Gollum when he becomes obsessed with a Lord of the Rings prop.
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TBBT Quotes

Sheldon: Are you still mad about the sperm bank?
Leonard: No!
Sheldon: Do you want to hear an interesting thing about stairs?
Leonard: Not really.
Sheldon: If the height of a single step is off by as little as two millimeters most people will trip.
Leonard: I don't care—two millimeters?! That doesn't seem right.
Sheldon: No, it's true! I did a series of experiments when I was twelve; my father broke his clavicle.

Penny, there's only one cookie with something in the middle that solves life's problems, and that's an Oreo. Or a Nutter Butter, if you're in a pinch.

Sheldon