All episodes Season 11 S11E21 2018-04-19 30 min 2000s CBS

The Big Bang Theory

The Comet Polarization

TV Flash files “The Comet Polarization” as hour 252 of 279 in the TV Flash guide — The Big Bang Theory (2007–2019) on CBS, season 11, episode 21, aired 2018-04-19, 30 min.

From the desk

How this hour is filed

This leaf is S11E21: listed hour 252 of 279 in the The Big Bang Theory guide, hour 21 of 24 in season 11. It aired 2018-04-19 (30 min). The listed hour before it is “The Reclusive Potential” (S11E20). Next is “The Monetary Insufficiency” (S11E22).

The Big Bang Theory — The Comet Polarization (S11E21)

Catalog log

Broadcast listing — not a TV Flash recap.

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.

Viewer FAQ

Where does The Comet Polarization sit in the The Big Bang Theory guide?

S11E21 is listed hour 252 of 279 — hour 21 of 24 in season 11, season 11 episode 21.

When did The Big Bang Theory S11E21 air?

The Comet Polarization aired 2018-04-19 and is listed at 30 minutes.

Is Big Bang Theory a single-camera nerd comedy?

No. It is traditional multi-cam form — laugh track, apartment geometry — applied to comic-con brains and geek references.

In the series

Why this series still plays

Physicists, a neighbor named Penny, and geek culture going fully prime time. Chuck Lorre and Bill Prady turned nerd references into global syndication gold; Jim Parsons's Sheldon became an Emmy machine. Traditional multi-cam form applied to comic-con brains — one of the last true ratings juggernauts.

The first useful geometry is an apartment, a whiteboard, and a laugh track aimed at comic-con brains. Physicists Leonard and Sheldon navigate love, comics, and social awkwardness with neighbor Penny as the human interface. Chuck Lorre and Bill Prady's CBS series premiered September 24, 2007, and ran twelve seasons through 2019 — 279 episodes of traditional multi-cam form applied to geek references. Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar hold the apartment; Mayim Bialik's Amy later…

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Also in season 11

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