You know what? Instead of reanimating pre-existing content like every other person online has done already, it'll be more worthwhile if folks thought about putting that same creative energy towards finishing or developing all those animatics, pitch ideas and pilots instead. Like from the follow links below.
...and I know what you're thinking, but I say:
I don't care.
Copyright, Schmopyright.
There are some good ideas that shouldn't have been cancelled at all, whatever the reason. And plenty more that can be revised with a fresh set of eyes and better technology at hand.