In 1980 , he began calling play - by - play for a minor league baseball team .
Missouri native , Rooney began his broadcast career in the 1970s , doing a number of assignments for various radio stations in Missouri and Oklahoma .
In 1980 , Rooney began calling play - by - play for a minor league baseball team .
Missouri native , Rooney began his broadcast career in the 1970s , doing a number of assignments for various radio stations in Missouri and Oklahoma .