The Big Bang Theory 12×04 Promo “The Tam Turbulence”

The Big Bang Theory 12×04 “The Tam Turbulence” Season 12 Episode 4 Promo – When Sheldon won’t tell anyone why he’s never mentioned Tam (Robert Wu), his childhood best friend, Leonard takes matters into his own hands. Also, Bernadette and Penny take out Raj’s fiancée, Anu (Rati Gupta), for dinner to get the skinny on her, on THE BIG BANG THEORY, Thursday, October 11th on CBS. Jerry O’Connell returns as Sheldon’s brother, George.