Maskenball bei Scotland Yard (1963)

Agostino announces an incredible invention: a device that allows one to jump into any TV show. He's promptly declared insane and ends up in an institution. Giorgio, however, who is convinced by Agostino's abilities, rescues him, and the two begin to use the invention as a marketing strategy: The cake, which comes from Giorgio's aunts' oven and hasn't sold well up to this point, is now being advertised across television.