As the official site describes it, SopCast Player is designed to be an easy to use Linux GUI front-end for the p2p streaming technology developed by SopCast. SopCast Player features an integrated video player, a channel guide, and bookmarks. Once SopCast Player is installed it simply "just works" with no required configuration.
The download link is here but I suggest that you follow the instructions given on the wiki page (worked perfectly for me).
Here's a screenshot of SopCast:
Give it a try.