There is a great site with free podcasts of folk shows from public access Radio Taranaki in New Zealand.
These shows - Folk Music Hour - are produced by folk professional and enthusiast one Dave Calder.
Some are tribute shows such as for 'national treasure' Mike Harding (NZ), Eliza Carthy, Bob Dylan, and Doc Watson.
The files can be downloaded for offline listening by View Source / id. the MP3 link / copy and paste this into the browser's address field / then do a 'save page as' ...