Full House - Jerry?
This slip-up is in the episode, "Bye, Bye, Birdie."
Near the end, Joey walks into Stephanie and DJ's room. Joey says, "Hey, I'm bringing Michelle to ice cream. Who wants to come?" Stephanie replies, "I do...not." DJ says something to Joey, but she addresses him as Jerry! I think it was something like, "Thanks anyway JERRY, me and Kimmy are going to the mall."