This is a tough category. These shows all lasted more than one season, and are better than a lot of shows around, but not as good as the best of the best in their category. Some of them were gone too soon, and some overstayed their welcome a bit. Some of these I will re-watch, and for some once was enough for me.
Best in this List: American Crime, Psych, The Following, Gravity Falls, and Scream Queens
Worst in this List: Leverage
Shout-Outs: American Crime for making a genuinely dramatic and gripping crime anthology with a very solid cast
Nostalgia for making Boy Meets World, Charmed, and Full House better than they should be today
Burn Notice for continuing USA's trend of long-running solid dramas, with a nice spy twist on the formula
The Following for bringing Kevin Bacon back to TV and for making some fun and dangerously human serial killers
Glee for wearing its heart on its sleeve and becoming a phenomenon of sorts, even spawning a sub-genre of high-school music club dramedies
Hot in Cleveland for bringing together some sitcom legends for a fun start to TV Land's original programming with many cameos to boot
In Plain Sight for knowing the sweet-spot for having fun and then bringing the drama
Leverage for being extremely repetitive but bringing me a cast that I grew to love
Melissa and Joey for bringing together childhood friends and Disney survivors
Perception for being another in the long line of "Professional X helps detective because of their genius but it haunted by their past" but making it pretty fun
Pretty Little Liars for starting off strong, becoming too roundabout and inane, and then reigning it in for a solid finale
Psych for being one of the best shows around with a fun crime procedural and more laughs than should be allowed
Raising Hope for a surprisingly good dysfunctional yet wholesome family comedy
Revolution for having an incredibly amazing premise that kind of went to shit and a laughably absurd body count
Sirens for being better than it should have
Suburgatory for that title and pretty much being a live-action Daria
Torchwood for being so British and for not being afraid to kill people off
Warehouse 13 for having a super fun premise, cast, plot, and villain selection. Way better than it should have been on SyFy
Wayward Pines for taking a very suspenseful and exciting first season to a close with a fairly mediocre second season
Zoo for embracing the insanity needed to make an absolutely bonkers and entertaining summer show