Aired Friday May 24, 12:00pm - 12:30pmon E4

The Big Bang Theory

Series 12 Episode 20: The Decision Reverberation

Raj publishes a paper that suggests he may have discovered alien life. Penny encourages Leonard to stand up for himself.

Original air date
Cast and crew
  • Mark CendrowskiDirector
  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley CuocoPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRaj Koothrappali
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