The Big Bang Theory Season 9 Episode 22 : The Fermentation Bifurcation

The gang goes to a wine bar and runs into Penny’s old boyfriend, Zack. Also, Bernadette gets stuck spending the evening with Sheldon when she can’t go wine tasting with the group, and things don’t go as planned when Koothrappali introduces his new girlfriend, Claire.

NameThe Big Bang Theory Season 9 : The Fermentation Bifurcation
Air DateApril 28th, 2016
GenreComedy
NetworkCBS
Production CompaniesChuck Lorre Productions, Warner Bros. Television
DirectorNikki Lorre
Guest StarsAlessandra Torresani, Brian Thomas Smith
Plot Keywordsnerd, geek, friends, scientist, science, sitcom
Simon Helberg
Simon Helberg
Howard Wolowitz
Johnny Galecki
Johnny Galecki
Leonard Hofstadter
Jim Parsons
Jim Parsons
Sheldon Cooper
Kunal Nayyar
Kunal Nayyar
Rajesh Koothrappali
Kaley Cuoco
Kaley Cuoco
Penny
Mayim Bialik
Mayim Bialik
Amy Farrah Fowler
Melissa Rauch
Melissa Rauch
Bernadette Rostenkowski

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