https://www.wosu.org/tags/david-sarnoff-howard-black-milton-cross-nathaniel-shildkret-rca-magic-key-rosa-ponselle david sarnoff howard black milton cross nathaniel shildkret rca magic key rosa ponselle en-US Copyright Wed, 02 Apr 2014 17:49:32 GMT https://www.wosu.org/classical-101/2014-04-02/in-the-magic-key RCA Magic Key broadcasts were heard over the RCA Blue Network from 1935 to 1939. The program originated from what is now the Ed Sullivan Theater in New… Wed, 02 Apr 2014 17:49:32 GMT https://www.wosu.org/classical-101/2014-04-02/in-the-magic-key admin