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Get the "Big Bang Theory" theme song by the Barenaked Ladies.

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'BBT' Cast Flash Mob Video

'Big Bang Theory' cast performs a 'Call Me Maybe' flash mob

The cast and crew surprise the show runners with a show stopper.

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A Real-Life Ladies' Man

Kunal Nayyar of 'The Big Bang Theory' stops by The Marilyn Denis Show!

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Season Premiere

Monday, September 21 at 7:30ET/PT on CTV

Available Online: September 22. 
 
Watch full-length episodes of The Big Bang Theory online for 7 days after the original broadcast.

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