Pretty much all of the great old baseball/football announcers hailed from the South.
GMTA.
Red Barber, Keith Jackson, Mel Allen and Ernie Harwell come immediately to mind. Yet, in a twist of irony, some of the iconic broadcasters for Southern teams are New Yorkers.
The Texas Rangers PBP man, Eric Nadel, is from Brooklyn and another one from there is Eli Gold, the voice of perhaps the most Southern of all sports teams, Alabama's (the "Heart of Dixie") Crimson Tide. And of course Gold is associated with NASCAR, a sport that for many years was almost exclusively Southern.