What was cancelled or discontinued that you wish wasn't or that they brought it back?

ReBoot got... restarted with a boilerplate power rangers/tron script at one point. It's terrible and no one remembers it. There's also a terrible comic book squeal to the original that no one remembers either.

ReBoot somehow managed to get cancelled three times and revived twice. That third cancellation and its cliffhanger, though...