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The Big Bang Theory Season 12 Episode 20

Watch The Big Bang Theory Season 12 Episode 20 Online

Koothrappali is worried people won’t take him seriously in his own field after publishing a paper that suggests he may have discovered alien life. Also, Leonard wants to be the principal investigator on a plasma physics study.

Category: The Big Bang Theory, The Big Bang Theory Season 12

Actor: Kaley Cuoco, Johnny Galecki, Jim Parsons, Simon Helberg, Melissa Rauch, Kunal Nayyar, Mayim Bialik

Quality: HD 720p

Rating: 8.3/10




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