Sabrina: The Animated Series (1999)

S1E48 Moldy Oldie

When Sabrina's great-grandfather Gandalf arrives in Greendale to update his witch's license, chaos ensues within the Spellman home. His unorthodox methods and outdated spells create unexpected challenges for Sabrina and her family, leading to hilarious and magical mishaps that test their patience and skills. As they navigate the mayhem, Sabrina must find a way to help her great-grandfather adapt to the modern world while keeping the family dynamics intact.