Sailor Moon R
Star Trek: TOS
I also taped South Park off prime-time, and I taped War Planets and Mystery Science Theater 3000 on Saturday mornings. Oh yeah, Beast Machines too- at least the three or four episodes I lasted before the suck became overpowering.
I'm slowly in the process of obtaining the DVD releases of many of these series so that I can let go of the tapes, which take up a lot of room in a tiny apartment. It means that I get to watch stuff I haven't seen in years from a new and hopefully more mature perspective, which ends up being pretty cool. Cringe-inducing sometimes, but cool overall.
I have all of Beast Wars, SWAT Kats, and TOS. I just ordered what promises to be a complete collection of Mummies Alive! (yeah, several of these don't have official releases and probably never will). I haven't started collecting ThunderCats yet; I just haven't had that itch to watch it. Ditto South Park (except for the ninja weapons episode, OMG that's hysterical). I'm guessing there are only two or three other people on Earth who even know what the hell War Planets is. I don't care about Sailor Moon anymore. Pokemon I still consider amusing, and it was actually a dub I liked, but I'm not really craving any of those either. MST3K is easily downloaded. Beast Machines? Pfft, I'd rather light my money on fire.
...I can't believe these shows are anywhere from 12 to 40+ years old now.