Watch The Big Bang Theory Season 3 Episode 7 online via TV Fanatic with over 5 options to watch the The Big Bang Theory S3E7 full episode. Affiliates with free and paid streaming include iTunes, Vudu, YouTube Purchase, Google Play, and Verizon On Demand.
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When Penny's musician ex-boyfriend wants to crash on her couch, Leonard and Penny fight and Sheldon tries to stop them.