Mayim Bialik was referenced in a Blossom joke.
It seems the writers were already cluing us in on Mayim Balik possibly joining the cast long before she ever joined the show. In an episode where they were playing bowling, Raj’s script included suggesting the actress (as herself) to join their bowling team. Guess she did more than that, she became a part of the main cast for the years to come… and even became a love interest for Sheldon!
