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What "The Big Bang Theory" 21-th episode about
Sheldon's comic book store experiences changes when writer Neil Gaiman puts Stuart's store on the map. Also, Koothrappali takes credit for Penny's astronomical discovery, and friendships are threatened.
Episode number: 21
Episode name: "The Comet Polarization"
Episode release date: 20 april 2018 at 00:00
Status: aired
Rating: 7.4