Aired Tuesday December 19, 9:20am - 9:50amon Channel 4

The Big Bang Theory

Series 12 Episode 23: The Change Constant

Sheldon and Amy stay up late awaiting a phone call that could bring big news from the Nobel Committee: are their lives about to change?

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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