On Thursday’s episode titled “The Colonization Application,” trouble arises when Amy learns Sheldon has applied for a one-way mission to colonize Mars. Also, a trip to the pet store ends in a fight for Sheldon and Amy, Leonard surprises Penny with a very “adult” purchase, and, Raj is caught snooping in Emily’s apartment.
Watch an all-new “The Big Bang Theory” on Thursday, March 5th at 8pm ET/PT on the CBS Television Network.