Changing my IP address for wifi radio

OK, here goes...

I have an wifi radio that I take with me when I'm working abroad
{outside the UK that is}, mostly just to keep intouch with what's going
on back home.

I like to listen to the soccer games on BBC Radio Sport 5, but when I'm
out of the country the soccer games are blocked because {due to some
dumb licesing situation} the broadcast will only work if the incoming
IP address is one recognised as a UK IP address.

Is there any way I can work in a little "relay" sort of thing that
would pick up the local IP and then relay the broadband on to my wifi
radio but change the IP address to one that would pass off as a UK IP ?

Hope you guys can see what I'm trying to do here, I'm no techie so I
probably haven't given the best description of what I hope to achieve,
but I'd appreciate any thoughts on what options I might have.

Canada Bob.