Watch The Big Bang Theory Season 4 Episode 1 online via TV Fanatic with over 7 options to watch the The Big Bang Theory S4E1 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, Google Play, TBS, and Verizon On Demand.
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Penny tags along for Sheldon's first date on the fourth season premiere. Elsewhere, Wolowitz discovers a new use for a robotic arm.