Sabrina: The Animated Series (1999)

S1E15 Paranormal Pi

Desiring a machine that detects magical energies, Pi finds it too costly to purchase, prompting him to create a replicant instead. He successfully picks up readings from the Spellman house and Sabrina herself. Meanwhile, Uncle Zamboni arrives for a visit, and the gang is tasked with catering to his every need. Additionally, Salem seizes the opportunity to persuade Uncle Zamboni to restore him to his human form.