Bewitched - Season 8 Episode 9
A Plague on Maurice and Samantha

Samantha has lost her powers again and it seems like Maurices magic is gone as well when he visits her. Dr. Bombay discovers that no one should kiss Samantha or they would lose their powers. So, until his powers come back, Maurice lives like a mortal. Maurice then helps out Darrin by winning a chili account for him. And thats when Samantha and Maurice get their powers back respectively.