The Big Bang Theory: Season 9 Episode 23: The Line Substitution Solution
Starring: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Mayim Bialik, Kunal Nayyar, Melissa Rauch
Length: 18 minutes
On Air Date: 5 May 2016
The Big Bang Theory: S09E23 Description: Sheldon hires Stuart to spend the day with Amy when he would rather go to the movies. Meanwhile, Penny struggles to make a connection with Leonard’s mother when she comes to visit.