: After touring NASA, Sheldon and Howard drop in unannounced at Sheldon’s mother’s house. Sheldon looks through the window and catches his mother, Mary Cooper, having sex with a man named Ron.
: Sheldon struggles to reconcile his mother’s devout religious beliefs with her behavior, calling her a "demonic weasel" for her actions. [S7E18] The Mommy Observation
In the episode (Season 7, Episode 18) of The Big Bang Theory , Sheldon's surprise visit to his mother in Houston leads to a shocking discovery, while Raj hosts a murder mystery party back in Pasadena. Sheldon's "New Reality" in Houston : After touring NASA, Sheldon and Howard drop
For more details on this episode, you can check the full recap on the Big Bang Theory Wiki or view critic reviews on Rotten Tomatoes . : After touring NASA