On September 29, 1948, WSB-TV began transmitting on channel 8 for the first time. It is the second-oldest station south of Washington, D.C.; only WTVR-TV (channel 6) in Richmond, Virginia is older. James M. Cox, publisher of The Atlanta Journal and owner of WSB radio, launched the station (AM 750 and 104.5 FM, now on 98.5 FM). Cox owned WSB AM-FM-TV through Miami Valley Broadcasting Inc., which eventually changed its name to Cox Enterprises. Because to its radio sister's lengthy relationship with NBC Radio, the station was initially a key NBC affiliate. It also aired some ABC programs (from 1949, shared with WAGA-TV, station 5) until 1951, when it was replaced by WLTV (channel 8; now WXIA-TV, channel 11).