Bernadette reconsiders getting married when she and the girls see Howard's sexual history posted online on The Big Bang Theory. "The Stag Convergence" is the 22nd installment of the show's 5th season.
When does she ever? Christine Baranski returns as Leonard's mother, Beverly. We love it every time she makes a guest appearance, and this particular time is going to be fantastic.
Stuart (Kevin Sussman) comes over to offer help to Leonard and Penny as they attempt to pick up a comic book for Penny's nephew. Stuart is nice... for a guy who likes comic books.
Amy brushes her teeth while Sheldon expresses his excitement over something he sees on his tablet. Also in this episode, Amy and Penny take Bernadette out for girls' night.
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?