Inner Briefs: Nicely animated slapstick; Wakabayashi's script was, as usual, really dumb, but the crazy animation was very entertaining to watch, at least.
Chuck to the Future 1 and 2: Funny Looney Tunes-like comedy; part 2 was specially good, great CG work.
Chuck to the Future 3: I certainly wasn't expecting Panty & Stocking to pull a David Lynch-themed episode.
HELP!: I don't think the song was very fitting for the video, but the animation and art were fantastic and it made for an enjoyable watch.
All in all, the most experimental(?) Panty & Stocking broadcast to date. They really wanted to complete the 26 episodes run, I guess.