Dot and Bette's body while rubbing Chester's shoulders is noticeably narrower than usual.
When Chester is performing his magic trick, the flower stem is initially long after it's pulled from the wand, yet shortly after when Chester is about to make it disappear the stem is almost gone. This doesn't seem to be part of the magic act so much as a TV trick to make the magic easier for the actor.
(Starting at 39:59) When Marjorie is supposed to be striking Alice's head with a hammer, it can be seen that she is actually hitting the pillow just next to Alice's head instead.