The Big Bang Theory

Season 9 Episode 23

The Line Substitution Solution

Aired Thursday 8:00 PM May 05, 2016 on CBS
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Episode Summary


Wanting to go out with the guys, Sheldon foolishly pays Stuart to spend the day with Amy. Also, Penny struggles to connect with her new mother-in-law while Amy and Bernadette have no problem hitting it off with her.

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