• 5 years ago
The Big Bang Theory 12x20 "The Decision Reverberation" Season 12 Episode 20 Promo railer - 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, on THE BIG BANG THEORY, Thursday, April 25th on CBS.

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