If you've been brought up on TMS, though it's difficult to enjoy the cricket any other way - even Sky subscribers I know will turn down the volume and listen to the radio commentary whilst watching on screen. Unfortunately some of the very best matches like the Ashes for example always seem to clash with my summer holidays and you'll find the radio broadcast difficult to get from outside the UK.
BBC restricted access to it's TV programmes online the radio was completely unfiltered however this isn't the case. I'm not sure to what extent but any radio sports programme that contains live coverage doesn't seem to work when you're outside the UK.
This includes all the local radio broadcasts which cover football matches too and of course trying to access TMS from the BBC web site is also a non-starter.
The reason I presume to copyright issues, and it's basically the same situation as the BBC TV programmes which you can't watch live or via iPlayer from anywhere outside the UK without a British IP address.
Listening to Test Match Special Abroad
However fear not, it's relatively simple to listen to the Test Match Special broadcast online from anywhere in the world. You just need to hide your IP address and hence your location by using an intermediary server. Now I should point out here that proxies although sufficient for BBC TV programmes won't work with live broadcasts either for TV or radio shows - you'll need a VPN service like Identity Cloaker.
All you need to do on a computer is fire up Identity Cloaker, select a UK based server from the list and then go to the BBC website. Instead of seeing the International version of the BBC site, you'll get access to the UK version and what is more when you navigate to the broadcast links like TMS they'll work without problems.
This method will work for your laptop or PC, but although you can use Identity Cloaker on other devices you'll have to use a slightly different method. Here's the way you can set up the VPN on your iPad using exactly the same account, it also works with Android devices too in much the same way.