Surprisingly, the episode wasn't big time funny. Even with favorites of mine Bernard Fox as Dr Bombay, and Martin Frome as Mr Hornbeck. My favorite Martin Frome work was when he was Aunt Bee's shady boss in "The Andy Griffith Show".
It's funnier when Endora (Agnes Moorehead) puts a spell on Darrin (Dick York). Great together Dick York and David White seemed to struggle until the salesmen appeared. Then it picked up with David White going on a funny comedic roll.
Surprised Darrin even let's creepy Endora in the house let alone babysit. Just an average classic sitcom episode like this is still much better than any US PC TV sitcom made today.