Dizi Adı: The Big Bang Theory
Bölüm Adı: The Fermentation Bifurcation
Sezon/Bölüm: 9. Sezon 22. Bölüm
Yayın Tarihi: 28 Nis. 2016

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.