The Big Bang Theory : The Mommy Observation (2014)
Directed by Mark Cendrowski / Chuck Lorre / Bill Prady
Share on
Synopsis
Howard and Sheldon tour NASA in Houston and pay a visit to Sheldon's mother, who greets him with a surprise. Meanwhile, back at home, Raj surprises the rest of the gang with a murder-mystery game-playing evening that's not the killer party he expected it to be.