Ernie Harwell was the only broadcaster ever traded for a player. In 1948 the Brooklyn Dodgers traded a catcher to the Atlanta Crackers in return for Harwell.
Vin Scully
Jack Buck
Ernie Harwell
Curt Gowdy
Ken Coleman
Ned Martin
Skip Carey
Marty Brenneman
Bill White
Phil Rizzuto
Joe Garagiola