I just downloaded this the other night. It's a (legal) peer-to-peer program that sits on top of a bittorrent client called Azureus.

It has channels for Showtime shows like Weeds and Dexter, BBC comedies/dramas, National Geographic, and more and some HD content. Also user content a la Youtube, but much better quality.

I just started playing with it, but I'm pretty impressed.

www.vuze.com

Download it here:

http://azureus.sourceforge.net/

Of course nobody here would ever dream of using this program