The Big Bang Theory

Season 11 Episode 21

The Comet Polarization

Aired Thursday 8:00 PM Apr 19, 2018 on CBS
8.4
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30 votes

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Episode Summary

EDIT

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.

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