In 'Its Magic Charlie Brown', problems arise when Snoopy makes Charlie Brown disappear during a magic show, and then has problems making him reappear.
It's Flashbeagle, Charlie Brown:
Inspired by the Flashdance craze, Snoopy begins leading a double life as a disco dancer in this peanuts outing. No wonder Snoopy's too tired to do what other dogs do, Charlie Brown. He's Flashbeagle, who dances all night and sleeps all day.