Watch The Big Bang Theory Season 5 Episode 3 online via TV Fanatic with over 6 options to watch the The Big Bang Theory S5E3 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, Google Play, and Verizon On Demand.
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How will Sheldon and Penny get along this week, with Leonard off at a wedding with Amy? That's the main Big Bang Theory question.