For their coverage of Super Bowl III at the end of the 1968 season, NBC used Pat Summerall (best known for his work for CBS and subsequently, Fox) to provide an "NFL prospective" on the coverage. This was due in part to the fact that NBC was at the time, the network television provider of the American Football League (whereas CBS was the network television provider for the pre-merger National Football League). In return, for CBS Radio's coverage of Super Bowls I, II and IV, they used Tom Hedrick, normally the radio voice of the Kansas City Chiefs, to provide an "AFL perspective" for their coverage.