The Big Bang Theory 8×6
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.
Serie: The Big Bang Theory
Director: Anthony Joseph Rich, Mark Cendrowski, Nikki Lorre
Guest Star: Jim Parsons, Johnny Galecki, Kaley Cuoco, Kevin Sussman, Kunal Nayyar, Mayim Bialik, Melissa Rauch, Simon Helberg