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File:Atom symbol as used in the logo of the television series The Big Bang Theory (black).svg - Wikimedia Commons
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The Big Bang Theory: The Complete Series (Limited Edition Blu-ray) : Various, Various: Movies & TV - Amazon.com
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The Big Bang Theory Season 10 [3DVD] (English audio. English subtitles): Amazon.co.uk: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch, Mayim Bialik, Kevin Sussman, Carol Ann Susi, John
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Amazon.com: The Big Bang Theory: The Complete Eleventh Season (BD) [Blu-ray] : Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Mayim Bialik, Melissa Rauch, Kevin Sussman, Chuck Lorre, Steven Molaro,
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