For those of you in Germany- in fact, anywhere near a British Military base (like Cyprus, Gibraltar, (somewhere in) Canada, Falklands, etc.
If you're anywhere near a British army base, you can pick up BFBS, which is British Forces Broadcasting Service (not sure of any of the frequencies), and they broadcast the Radio 5 Live feed for the GPs. But you may have to put up with the interjections of Premier League Football from time to time. As you say though, it is worth it, because Croft and Davidson are brilliant.
Here's the link to their website. Try it, it may work for you...
http://www.bfbs-radio.com/pages/extrane ... -c-106.php