Totally agree with Undergrads and Clone High. Loved those two shows. I also have to second The Glades. Sure, it wasn't the best show out there but it was good enough to keep running for at least one more season. If nothing else, they should have given the producers the go ahead to create at least one more episode. I fucking hate it when shows get cancelled right after a cliffhanger.
However, Futurama is the one show that I'm genuinely pissed off about being cancelled. I can't believe shows like The Simpsons is still running, and The Cleveland Show was given four years... yet Futurama, arguably one of the best adult-based cartoon shows with a metric ton of "those feels" moments, is constantly being knocked off the air.

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