![The Big Bang Theory Season 11 Episode 9 The Big Bang Theory Season 11 Episode 9](https://image.tmdb.org/t/p/w185/8MEDs1tCk6qWg2TlJJHZIPq4aWY.jpg)
The Big Bang Theory Season 11 Episode 9
Sheldon tries to teach the guys a lesson after they cut him out of a potentially valuable Bitcoin investment. Also, a seven-year-old video reveals a secret about Leonard and Penny’s relationship.
Views: 457
Serie: The Big Bang Theory
Director: Mark Cendrowski
Guest Star: Brian Thomas Smith, Carol Ann Susi, Eric Normington, Kevin Sussman
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