JosephB said:
International copyright law, international treaties, and likely Mexican broadcast laws. DirecTV does not have the right to distribute the copyrighted material in Mexico that they do in the US. They also do not have a license to broadcast using their DBS slots in space to Mexico, only to the US.
DirecTV does not have the rights to distribute the copyrighted material in Mexico. BEV does not have the rights to distribute copyrighted material in the U.S.
However, as a consumer, you are not bounded by buying copyrighted materials from the copyright holder only in your country. In other words, if I am interested in the NHL in the U.S., I have no obligation to buy it from Dish Network or DirecTV, if I can find a cheaper foreign source, e.g. CBC's HNIC from BEV or Star Choice, if I am only interested in Toronto's or Montreal's games...
As long as the country I am living in has no import embargo, or a law that prohibits buying copyrighted material from a foreign source, I am fully entitled to do so.
U.S.A. doesn't have such a law. Canada, through the Supreme Court clarification, had such a law from April 2002 to October 2004. During that period, it's illegal for Canadians to buy TV contents from foreign sources (read: subbing DirecTV or Dish Network). Then on October 28, 2004, a Quebec court repuriated this clarification, saying that it's against the Canadian Charter of Rights and Freedom to prohibit Canadians from getting foreign TV contents...
So, it's OK to do it in Canada. Its' OK to do it in the U.S. International copyright law doesn't apply to consumer. So what's left? Which Mexican broadcast law prohibits her citizens from subbing to American/Canadian DBS? or worse yet, even prohibits visitors from getting DirecTV/Dish signals from their RVs?
I bet there is no such law...