Penny struggles to make a connection with Leonard's mother on The Big Bang Theory. "The Line Substitution Solution" is the 23rd episode of the show's ninth season.
Sheldon and Leonard's paretns have an awkward family visit on The Big Bang Theory. "The Convergence Convergence" is the 24th episode of the show's ninth season.
We've seen what it was like to put Leonard's mother and Sheldon's mother in a room together, but what happens when you also add Leonard's dad to that mix? That's gotta be an awkward dinner conversation.
Sheldon's mother (Laurie Metcalf) also visits for the special occasion, as Penny tries to plan a wedding ceremony that will include all of their family and friends.
Howard has to be proud of the navigational system he and the guys have been working on together. But is the government really out to get them because of it?
After talking with Leonard's mother, Penny has decided to try planning a wedding ceremony that their friends and family (and the audience) can be a part of.
Of course, Sheldon is also bound to have some opinions about all of this. But how much will all the chaos affect whether or not Penny and Leonard actually get their ceremony do-over?
Sheldon: I'll have a diet Coke. Penny: Can you please order a cocktail? I need to practice mixing drinks. Sheldon: Fine... I'll have a virgin Cuba Libre. Penny: That's... rum and Coke without the rum. Sheldon: Yes, and would you make it diet?
