Gilligan's Island S03E21 - Gilligan's Personal Magnetism

Gilligan's Island (1964)
S03E21 Gilligan's Personal Magnetism
Episode Overview
During a bowling tournament between Skipper and Gilligan, a bolt of lightning hits Gilligan, causing his heavy bowling ball to bond with him at a molecular level. The Professor steps in to assist Gilligan, but inadvertently makes matters worse by rendering him invisible instead.