"What a Night for a Knight" is the first episode of Scooby-Doo, Where Are You!, which means its monster-of-the-day, the Black Knight ... was conjured by a local witch. Together, the witch and ...

Looking to stream Scooby-Doo! and the Witch's Ghost starring Mary Kay Bergman? You're in luck, as it's currently available on Max and Max (Via Hulu). Max: Watch for free with a subscription.