It's 1957 and a new TV show is about to premiere. It's "The Lester Guy Show" staring Lester Guy, a washed up film star who couldn't get a job anywhere until he's hired by the president of the Zoblotnick Broadcasting Network (ZBC) to star in his own show. Unfortunately, the show is hindered by Lester's ego; an incompetent director who got the job only because his uncle owns the network even though no one can understand him; a producer who's constantly nervous; the spacy blond costar named Betty Hudson who has no experience in TV; and an equally dysfunctional crew. Things seem to go well on the rehearsal, but of course the actual show is a disaster. Props break, sound effects get mixed up, and cues are missed. Betty ends up saving the show by singing a song her mother taught her, stealing the show. The phones light up, and of course, the show ends up being a hit.