The Big Bang Theory
Season 12·EPISODE 12
The Propagation Proposition
WatchedS12 · E12
Penny runs into her ex-boyfriend, Zack, who invites her and Leonard to a dinner to meet his newlywed wife. After the dinner the newlywed couple make an odd proposition to Leonard, which makes Penny to freak out. Also, Raj attempts to mend things with his ex-fiancée, Anu.
AIR DATEJan 10, 2019Original broadcast date
RUNTIME20m20 minutes
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