Watch The Big Bang Theory Season 1 Episode 16 online via TV Fanatic with over 5 options to watch the The Big Bang Theory S1E16 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, and Google Play.
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When the boys go to eat at Penny's restaurant, she learns Leonard has never had a birthday before. She decides to throw him a surprise party and blackmails Leonard into helping.