I'm not saying I know of any current operational sites (but I DO know they exist) but fans of team X do watch a game(s) together virtually.
One member has cable/dish and he shares the link to his slingbox or web server or whatever. If he gets cut off another member sends a new secure link.
All the while everyone can chat online during the game ("can u believe that call?? We got robbed").

If you search you can find them. I ain't interpreting the law here, just sayin'; it's not THAT hard to see the games online if you are determined to .. I had to travel during a couple games. Good luck finding a Lions game on TV when you are in Packers/Bears area .. unless they are playing each other, even then the commentary stinks.
<grin>

Make your sound your own!
.. I do not work here, but the benefits are still awesome