I did come across this page from a WCK issue that mentions how the network hated "Harley and Ivy", though it doesn't mention specifically why. The internet rumor was that they didn't like the lesbian overtones, but I remember specifically that it was because of the lack of Batman in the episode. The internet states that this episode was delayed from airing because of how much they disliked it, but that isn't true, it aired in early 1993 alongside a bunch of other new episodes. The episode that was delayed was "Bullet for Bullock". I remember that specifically.