The Big Bang Theory

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The Big Bang Theory - S8 Ep. 21
PG | Comedy

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Air Date: Thu 17 Apr 2025

When Raj is asked to create a message on the off chance a NASA mission discovers alien life, the guys fight over what he should do, while Penny contemplates returning to acting.

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S8 Ep. 17 - The Colonization Application

A trip to the pet store ends in a fight after Amy learns Sheldon has applied for a one-way mission to colonise Mars. Meanwhile, Leonard surprises Penny and Raj gets into trouble snooping.

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S8 Ep. 18 - The Leftover Thermalization

Tension arises when a magazine fails to mention Leonard in an article about the paper he co-wrote with Sheldon, and a blackout at Mrs. Wolowitz's home leads to a final family dinner in her honor.

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S8 Ep. 19 - The Skywalker Incursion

When Leonard and Sheldon are invited to speak at UC Berkeley, they take a detour to try and meet one of their idols.

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