Things get licensed differently for different countries. I'm currently trying to buy a publishing license for a still-in-copyright piece of piano music, and have been told by the guy dealing with it: "Please note, I can only clear for Europe, but I can direct you where to go for the ROW [rest-of-the-world] rights once you have the above figures."

This is probably the reason for your restriction. BTW, I live in the Republic of Ireland and listen quite happily to the Beeb radio replays on my two browsers (Firefox and Mac's Safari), both here and at school. Can't get the TV one, though :-(