"The Thanksgiving Decoupling" (Season 7, Episode 9) of The Big Bang Theory features the gang at Mrs. Wolowitz's house, highlighted by Penny discovering she is legally married to Zack and a rare drunken turn for Sheldon. The acclaimed episode also features Raj taking over cooking duties and Sheldon bonding with Mike Rostenkowski. Stream the episode on HBO Max or Apple TV . The Big Bang Theory season 7 episode 9 review - Den of Geek