I work on the air and on the board of a LPFM. I know that many of the early "radio shows" are in the public domain for use on the air. "War of The World" gets aired many places on Halloween and I assume those are legal airings. What about programming from the 50s and 60s that aired on entities that no longer exist or it's thread to the current company is not easily traceable to grant permission for airing on non-commercial radio? I'm thinking of some of the Drake produced shows, under the RKO banner at the time. Would those be fair game to air?