Ron Darling pitched in part of 13 big league seasons, earning a World Series ring with the 1986 Mets. He's now an analyst and color commentator for a number of networks, including TBS. You'll be able to find him on the call for this Sunday's MLB on TBS telecast of the White Sox hosting the Yankees at 2 PM Eastern. Also, if you're in the New York area, you won't be blacked out of the game.
Darling retired from baseball following the 1995 season, and according to him, going from the pitcher's mound to the broadcast booth isn't a seamless process.