Plot: When Greg tells Jimmy he never does anything for him, Jimmy shares with him a story back in ye olden days -- the 1980s -- when Jimmy, Billy and their friend, Brian, were just a trio of pizza delivery boys with bad hair, and Christine was a lowly waitress at Howard Johnson's. Jimmy flips his lid when Christine lets him know that Kim is coming by with her new boyfriend, as this is going to crush Brian, whom Kim used to be dating before college -- especially since Greg, said new boyfriend, will be staying on Jimmy's couch and mooching off him