All episodes Season 9 S09E09 2015-11-19 30 min 2000s CBS

The Big Bang Theory

The Platonic Permutation

TV Flash files “The Platonic Permutation” as hour 192 of 279 in the TV Flash guide — The Big Bang Theory (2007–2019) on CBS, season 9, episode 9, aired 2015-11-19, 30 min.

From the desk

How this hour is filed

This leaf is S09E09: listed hour 192 of 279 in the The Big Bang Theory guide, hour 9 of 24 in season 9. It aired 2015-11-19 (30 min). The listed hour before it is “The Mystery Date Observation” (S09E08). Next is “The Earworm Reverberation” (S09E10).

The Big Bang Theory — The Platonic Permutation (S09E09)

Catalog log

Broadcast listing — not a TV Flash recap.

Sheldon and Amy try hanging out as friends when they spend Thanksgiving together at the aquarium. Also, Wolowitz reluctantly agrees to volunteer at the soup kitchen with Bernadette, Raj and Emily, and Penny discovers that Leonard knows more about her than she thought.

Viewer FAQ

Where does The Platonic Permutation sit in the The Big Bang Theory guide?

S09E09 is listed hour 192 of 279 — hour 9 of 24 in season 9, season 9 episode 9.

When did The Big Bang Theory S09E09 air?

The Platonic Permutation aired 2015-11-19 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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