What is your favorite Brilliant but Cancelled show?

Television is one of the great pleasures of our time. TV
shows have gone beyond formulaic sitcoms to deliver complex, thought-provoking
storytelling that can be read as literature (if you’re inclined to do such a
thing, which I am.) But the industry still exists to make a profit, and many
shows with great characters, ideas and potential have been cut off after a
season or two because of low ratings, even if they've developed a devoted following. Of course, all shows get cancelled at some point, so what could be considered "Brilliant but Cancelled" might depend on who you ask.

Listed here are some of my favorite Brilliant but Cancelled
shows -- Firefly, Party Down, Arrested Development, Wonderfalls, Freaks and
Geeks and Veronica Mars. I’m sure to have missed some great series, so please mention in the
comments if I’ve left out your favorite!