Vessel.com, a video sharing platform (like YouTube and Vimeo), offers a free 12 month subscription courtesy of a gift from Ellen DeGeneres. No catches, and no credit card required. So maybe Ellen is not your cup of tea but it also has some Discovery shows like Mythbusters.
Vessel is a video sharing platform (like YouTube and Vimeo) which gives subscribers early access to videos before they become publicly available for free.
Thanks to TA on OzBargain