[kardinal]

http://www.peertv.eu/
It's not really p2ptv but some of the channeles are supposted to use peercast technology. Looks like maxtv but it runs much better to me and it's not so bugy.
Not many channels that you cannot se anywhere else but as a whole it's pretty good. Sport sections is nice too.
They claim they will let users broadcast there contents in the future releases.
have fun!