The Big Bang Theory

Season 8 Episode 6

The Expedition Approximation

35
Aired Monday 8:00 PM Oct 20, 2014 on CBS
8.0
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128 votes

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Episode Summary

EDIT

Sheldon and Raj undertake an underground research expedition that turns into a test of how long before they get under each other's skin. Meanwhile, Leonard and Penny argue about money, and go to Wolowitz and Bernadette for advice.

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