Currently owned and operated by Opry Entertainment it is the longest-running radio broadcast in US history. Dedicated to honoring country music and its history, the Opry showcases a mix of famous singers and contemporary chart-toppers performing country, bluegrass, Americana, folk, gospel, and comedic performances and skits. It attracts hundreds of thousands of visitors from around the world and millions of radio and Internet listeners.

George D. Hay 

 

The Opry's current primary slogan is "The Show that Made Country Music Famous". Other slogans include "Home of American Music" and "Country’s Most Famous Stage".

In the 1930s the show began hiring professionals and expanded to four hours; and WSM, broadcasting by then with 50,000 watts, made the program a Saturday night musical tradition in nearly 30 states. In 1939, it debuted nationally on NBC Radio. The Opry moved to a permanent home, the Ryman Auditorium, in 1943. As it developed in importance, so did the city of Nashville, which became America's "country music capital".

 According to wikipedia