"The Melody Hour" was the retitled name of NBC radio's "The Carnation Contented Hour

The Carnation Contented Hour

The Carnation Contented Hour was a long-running radio music series, sponsored by the Carnation Milk Company, which premiered April 26, 1931 on the regional NBC West Coast network...

" a 30 minute musical show re-recorded by the Armed Forces Radio Service (AFRS) without commercials. During World War II, particularly, this program was broadcast over AFRS by means of 16" electrical transcriptions or radio discs at 33 rpm.