Well, we have another really big move towards media freedom. This time it's the PBS series NOVA. You can find many downloadable video clips to remix under a Creative Commons Noncommercial license.
Main NOVA Open Site:
http://www.pbs.org/wgbh/nova/car/open/
NOVA's explanation:
http://www.pbs.org/wgbh/nova/car/open/share.html
NOVA FAQ:
http://www.pbs.org/wgbh/nova/car/open/faq.html
