Watch The Big Bang Theory Season 11 Episode 21 online via TV Fanatic with over 4 options to watch the The Big Bang Theory S11E21 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, and Verizon On Demand.

Episode Details

On The Big Bang Theory Season 11 Episode 21, friendships end up being threatened when Koothrappali takes credit for Penny's astronomical discovery.


Unrated
Show:
The Big Bang Theory
Season:
Episode Number:
21