The Big Bang Theory
S9 E22 • The Fermentation Bifurcation
Comedyserie
USA
2016
The gang run into Penny's ex-boyfriend Zack at a wine bar, while Bernadette, who can't drink, hangs out with Sheldon for the evening. When Raj introduces his new girlfriend Claire to the gang, things don't go as planned. Brian Smith and Alessandra Torresani guest.