Once Upon A Time - Okay, this was vaguely interesting for a few episodes. I watch until around the time Jimeny comes in, and just give up because I don't feel like watching it anymore. My BF still bugs me to watch it, points out a nerd news blogger called it the best piece of Disney fanfic ever, but I don't know. If I wasn't interested in continuing it then, why now?
Sliders - It's still great, so long as you pretend that the first two seasons are all there are, and make up your own ending in a fanfic.
I'm sort of glad that Artuo from the first Earth (not his evil twin) is still technically around (so says Torme, and there is a little evidence in the show to prove it.) At least he escaped the madness of the later seasons.
Quantum Leap- Both great and bad. I'm not dissing it too much, as I quite like the series, but I can also see where others could say it went wrong. Unlike a PP, I quite liked the ending, and thought it was quite nice, and a good sequel hook, if one should ever (formerly) exist.
Otherworld- Okay, I had to find and watch this one myself, since it was around shortly before I was.
Eight episodes and that's the truth, with a potential ninth out there. Family is exploring ancient Egyptian ruins, during a very specific planetary alignment; the pyramid they are in gets hit by lightning, and they end up transported to a new planet that is sectioned off into separate zones, with no man's land separating each one, and the family, with access to a high level keycard (data crystal) on the run from the planet's government, discovering each new zone. They all have separate cultures and rules, and are essentially treated as nations under a dystopian government. Very good concept, but it ended up flopping and was never heard from again (mostly.) Dealt mainly with the family learning how to integrate with a new zone each episode, and trying to find a way back to Earth.