I think one of my favorites, or more memorable ones at least, had to be Princess Vi's Hippy Dippy Mom (I haven't seen most of the episodes for some time, but this one still sticks out in my memory). I thought Frieda was a pretty cool character, plus her interactions with Violet and Fred were sort of amusing. I still remember Al Dente's "post" inccident or whatever in that episode, at least I believe that's the one that had it in there