The radio station, which is the current WNIV, has had a long history in the Atlanta radio market. The station first signed on in Decatur in the 1950s with an easy listening radio format with the original callsign WGLS, and later picked up the callsign WTAM when the Cleveland, OH station changed to KYW. In the 1960s, it changed to WIIN. In 1968, WIIN flipped to a Top 40 format. During the early 1970s WIIN changed format to progressive rock. WIIN became an adult standards/easy listening station in the late 1970s. In the early 1980s, the station changed call signs to WKLS and format to rock by simulcasting WKLS-FM. The rock format simulcast of WKLS-FM at 970 kHz lasted until 1988 when the station was sold, the callsigns changed to the current WNIV, and the station adopted religious format programming.
Former Georgia Congressman Pat Swindall hosted a daily talk show on WNIV for several years, after serving a federal prison sentence.