Tor does not let you pick your exit node, and even if you could, you would have to know which ISPs are subscribers, and even if you did, you would have to compare your exit node's IP to ranges in the subscribing ISPs.
The point is moot - it's going to be difficult to get to espn360.com, and no one's going to jump through hoops to get it (calling their non-subscribing ISP and whatnot). Once again, big media proves their ineptitude.