Not sure about the radio contract, but the Sox paid WSNS-TV to televise the games from 1973-1976. The Sox paid production costs and sold the advertising themselves. (WSNS had similar deals with the Bulls and the old Chicago Cougars hockey team.) That was a big drop-off from the Sox previous contract with WFLD, which had paid more than a million dollars a year to lure the Sox away from WGN in 1968.