Harrelson served as a Chicago White Sox announcer from 1982 to 1985 and briefly left broadcasting during the 1986 season to become the White Sox's General Manager.
Harrelson returned to the White Sox in as the main play-by-play announcer during television broadcasts, teaming up with Tom Paciorek until 2000 and Darrin "DJ" Jackson from 2000 to 2008.