I saw a note on WGBH this morning:(From WGBH's web-site:)

8PM Saturday Nov 30th
American Soundtrack: This Land Is Your Land

Take a musical journey through modern American folk music, from its roots in bluegrass to San Francisco coffeehouses to clubs in Greenwich Village.

Hosted by Tom and Dick Smothers and Judy Collins, the program features legendary folk artists such as the Kingston Trio, the Limeliters, the Highwaymen, Glen Yarborough, the Brothers Four, Roger McGuinn, and more.