Music Appreciation Hour

Music Appreciation Hour was a National Broadcasting Company radio series that offered lectures on classical music aimed at students. The show was part of a broader mid-20th-century movement to popularize serious music. From 1928 to 1942, orchestra conductor Walter Damrosch hosted the show.
"Radio Guide" (March 18, 1939) commented: 
Except for the West Coast, "Music Appreciation Hour" was broadcast during school hours, and NBC provided teachers with supplementary materials. It also aired on Saturdays; in Nashville, Tennessee, local NBC affiliate WSM aired the program immediately before its weekly barn dance broadcast. A comment from Damrosch on a 1928 broadcast about there being no room in the classics for realism prompted host George D. Hay to comment how much the barn dance contrasted with the classics: as opposed to grand opera, Hay's program presented the "Grand Ole Opry", thus offhandedly giving that program the name it has held for nine decades since.