The Say Hey Kid Willie Mays is in this episode too. Turns out he's a warlock or whatever male witches are called in the tv show. Mays zaps himself away from a Halloween Party at just before midnight to "the ballpark." Elizabeth Montgomery tells Dick York that's the reason Mays hits so many home runs. The scene is edited out of the shorter version below.
Bewitched S3E7 edited but better player on IMDBtv.
Bewitched S3E7 full episode but small player on Youtube.
Episode fan page with continuity errors. Did you notice Boris was inside the party before arriving at the party?
Episode page on Rotten Tomatoes.