Where can I watch “The Big Bang Theory” Season 12 Episode 9 online?

This page provides episode info and a legal-only guide. It does not host streams or downloads. Check official platforms and licensed services for availability in your region (US first).

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Watching earlier episodes in season 12 helps you follow the plot and character arcs leading into this episode.

Watch The Big Bang Theory Season 12 Episode 9 Online

“La Théorie déjouée” — Watch "The Big Bang Theory" Season 12 Episode 9 online in HD for free. Check streaming providers, cast, and episode details.

Nov 15, 2018 Season 12 Episode 9 21 min PG

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The Big Bang Theory Season 12

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Season 12 Episode 9 — Aired on Nov 15, 2018 • runs about 21 minutes.

Directed by Kristy Cecil.

Written by Steve Holland, David Goetsch.

Notable cast/guest names in this episode include Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg.

This page includes 2 official still(s) (when available) plus legal availability links.

Looking for “watch The Big Bang Theory Season 12 Episode 9 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

Sheldon et Amy confient à Leonard la tâche de vérifier les références de l'article qu'ils ont écrit ensemble, mais leur ami découvre une source qui met à mal leur thèse. Bernadette se met en tête de battre Howard à Fortnite.