The Big Bang Theory

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The Big Bang Theory - S12 Ep. 4
PG | Comedy

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Air Date: Wed 4 Feb 2026

Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, so Leonard takes matters into his own hands. Also, Bernadette and Penny take out Raj's fiance for dinner.

Episodes

Episodes

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S12 Ep. 4 - The Tam Turbulence

Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, so Leonard takes matters into his own hands. Also, Bernadette and Penny take out Raj's fiance for dinner.

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S12 Ep. 5 - The Planetarium Collision

Amy doesn't have time to work with Sheldon on super asymmetry so he goes to great lengths to ensure she's available. Koothrappali doesn't want Wolowitz to join him in hosting a show at the planetarium

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S12 Ep. 6 - The Imitation Perturbation

When Wolowitz dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party. Also, Leonard is shocked that Penny doesn't remember their first kiss.

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