Interesting back story here. Radio stations were basically prohibited from playing records until 1938. So if they wanted to play music, they had to hire live musicians. The Musicians Union would sue if a radio station played records. There was even a time when "Not For Broadcast" was printed on some record labels. In 1938, Paul Whiteman was hosting a radio show for NBC with his orchestra performing from a club in Long Island. At the same time, a local radio station, WNEW, was playing Paul Whiteman records. So Paul and his label sued, (Paul Whiteman vs WNEW) and lost. From that point on, radio stations were legally allowed to play records.