Grand Ole Opry was run on more than one radio network and the longest-running radio broadcast in US history .
Founded on November 28 , 1925 , by George D. Hay as a one-hour radio `` barn dance '' on WSM and currently owned and operated by Opry Entertainment ( a division of Ryman Hospitality Properties , Inc. ) , it is the longest-running radio broadcast in US history .
Grand Ole Opry