The Big Bang Theory · SEASON 8

The Expedition Approximation

Episode 6 · 2014-10-20

★ 7.2
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Season 8Episode 6★ 7.2/10
  • Comedy

Episode overview

Sheldon and Raj test whether they could survive a dark-matter research expedition in a salt mine by simulating the conditions in a steam tunnel deep underground. Meanwhile, Leonard and Penny seek advice from Howard and Bernadette after they fight about money.

21 minutes

Season 8 episodes