The Big Bang Theory - Trivia Question of the Day! What Halloween costume does Sheldon wear to Penny's party? A. Superman B. The Flash C. The Doppler Effect D. The Green Lantern
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The Big Bang Theory's Kaley Cuoco celebrates final Halloween episode with throwback snap | Metro News
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The Big Bang Theory: The gang always dress up as DC characters | TV & Radio | Showbiz & TV | Express.co.uk
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The Big Bang Theory on Twitter: "Happy Halloween! Don't miss tonight's special Halloween episode! http://t.co/ibrvdBtz" / Twitter
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