All hail Firefly.
I hate how the networks played around with it, throwing it into any old time slot - give the show a chance! (They did the same with Futurama *bites back sob*, but at least Futurama is getting another run soon).
I heard another reason Firefly got cancelled was because a lot of Buffy fans boycotted it. You see, Firefly and Buffy creator Joss Whedon left the later seasons of Buffy to work on his new series Firefly. And Buffy fans didn't like this, so many of them boycotted Firefly in hopes of getting Joss back working on Buffy.
As much as I love Buffy, I love Firefly more, and I feel like kicking people when I hear things like that.