So far they have gone in order, but tomorrow where episode 17 would have been episode 21 will be airing at noon. 18-20 will air after that, then next week will start with episode 22.

I always wonder about stuff like this. With the Paul Lynde Show the problem was episode availability and they skipped around 3 of them.

The episode description on IMDb sounds like nothing out of the ordinary--nothing that would ban the episode.