7.63
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The Big Bang Theory Season 8 Episode 6
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. Leonard and Penny seek advice from Howard and Bernadette after they fight about money.
Episode Title: The Expedition Approximation
Duration: 21min
Air Date: 2014-10-20
Year: 2014
IMDb: 7.2
