I just heard about Tron Uprising, and now it may be getting cancelled
I haven't had a chance to watch it, but I'm now trying to find the episodes... I've only heard good things about it. Anyway, if you want to get in on the petition to save the show:
http://www.change.org/petitions/renew-tron-uprising
I wish they had this when Firefly and Dark Angel were cancelled...