Eerie, Indiana: The Other Dimension (1998)

S1E14 I'm Okay, You're Really Weird

A traveling salesman arrives in Eerie, peddling a peculiar service: unlocking the hidden goofball within every resident. He claims their repressed silliness is the root of all their misery, and offers to liberate it for a nominal fee. The townsfolk, skeptical yet intrigued, begin to take him up on his offer, only to discover that unleashing their inner clowns has consequences far stranger than they anticipated. As chaos and slapstick ensue, they must find a way to restore order before the entire town becomes a permanent circus.