If you like the blues, WCPN in Cleveland has a great show every weekend. Every Friday 9-12 PM, and Saturday 10PM-1AM EST. They play blues in chronological order from 1920's to today. I'm listening to it now and it's great, been around for decades on WCPN. Gotta love it for radio.

http://www.publicbroadcasting.net/wcpn/ppr.pprmain