The Big Bang Theory - Season 4 - with BNL special features
DVD/Blu-ray release: September 13, 2011
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Links
Big Bang BNL Music Video - Warner Bros. TV Press Release (July 15, 2011)
‘The Big Bang Theory’: The Complete Fourth Season explodes onto DVD (www.examiner.com - September 9,2011)
amazon.com - DVD
amazon.com - Blu-ray
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