( aired Fri 10/04/19 ) In the heart of Chattanooga, what is now M.L. King Boulevard was once known as East 9th Street - the Big 9. Tomorrow, the Big 9 Roots Festival will celebrate the legacy of African-American history and music in that area. The festival - which runs from 11 AM to 11 PM - takes place at the Bessie Smith Cultural Center, where Elijah Cameron is director of community relations...