CBS's first attempts to broadcast the NFL on television were notable for there being no broadcasting contract with the league as a whole. Instead, CBS had to strike deals with individual teams to broadcast games into the teams' own markets, many of which were inherited from the defunct DuMont Television Network. Often the games would be broadcast with ""split audio"" – that is, a game between two clubs would have the same picture in both team's ""networks"" (the visiting team's home city and affiliates of the home team's ""network"" beyond a 75-mile radius of the home team's TV market). Each team's ""network"" has different announcers (usually hometown announcers).