Not entirely sure what you are trying to say, but just because a U.S. based network has the right to broadcast an event or show doesn't mean they have that right in Brazil or anywhere else except the U.S. On pay TV there are available subscriptions to just about every major sports league on the planet. I don't think Apple would block them on ATV, it's just a matter of what the business model is of the respective leagues and whether they want to be on ATV.
What I am saying is there is the potential revenue stream by bypassing the providers that would otherwise be the only avenues to air that content in another country. Similar to how Star Trek: The Next Generation was aired. In Star Trek: The Original Series, production was made at DesiLu Studios, and aired only via NBC. TNG had no such obligation, as they went straight for syndication which had no contract with a given network provider.
Another analogy would be how the iPhone was exclusively ATT's until that deal expired. Look at how that exploded in the US the day that contract ended.
Do the same here, with sports, and not just US-based sports, but sports around the world. Instead of going through Fox Sports to watch the AFL or Rugby (which we have to do in the US), drop them, take it to something like ATV or another box (Roku, Chromecast, etc.), and have the content streamed everywhere to those who own such hardware.
In short, get rid of the rights and exclusivity. If it worked for the iPhone, it could work for content elsewhere.
BL.