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The Big Bang Theory S12E20 poster

Watch The Big Bang Theory – Season 12 Episode 20: The Decision Reverberation

The Big Bang Theory • Season 12, Episode 20 • 20 min • 2007 • ⭐ 7.9/10 • Comedy

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

Directors: Chuck Lorre , Bill Prady

Watch The Big Bang Theory – S12E20

Episode Overview

Raj 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.

Episode Navigation

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The Laureate Accumulation
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The Change Constant / The Stockholm Syndrome
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Unraveling the Mystery: A Big Bang Farewell

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