I think that another factor is the enthusiasm of the producers. And with Internet streaming there can now be loads of specialist stations online. The challenge is to find them. I know that Mitch and Robyn Park (Little Robyn here) have an amazing folk programme that they put out on Cape Kidnappers in New Zealand. And I believe that fRoots in the UK puts out a programme using RSS - but I've never actually managed to receive this (and the files are too big for my 3 mobile dongle account). Any audio stream can also be captured for later listening using Audacity, even from BBC iPlayer. So with the latter Mike Harding's progs. (the UK one) and BBC Alba progs. can be captured world-wide. As can streaming from RTE (from Eire). And all of this says nothing about the many stations in the USA and Canada. Maybe someone here could produce a list of folk programmes streaming on the web?