WNBJ-AM signed on in 1927 from Knoxville, Tennessee. Lonsdale Baptist Church operated the station. The church sold it in 1930 to Stuart Broadcast Corporation, which renamed it WROL-AM.
The station moved in 1941 to 620 AM. At the time of this 1948 ad, WROL was broadcasting at 5,000 watts and had an FM sister station at 97.3 MHz.
The race was on to bring television to Knoxville. WROL’s owners joined a group of investors to sign on WROL-TV Channel 6 in 1953. Rival WJHL-TV was going to be the first TV station in Knoxville, but its tower collapsed a few months before WROL signed on.
WROL-AM-TV became WATE in 1955. The AM station’s call letters changed to WETE in 1971, when it aired an adult contemporary format.
It became Top 40 WRJZ-AM in 1976. The station moved to adult contemporary in 1981 and to a country format in 1982. A few months later, WRJZ adopted an oldies format before it went silent. A few years later, WRJZ signed on the air again with a religious talk format, which it carries today.
Sources: Wikipedia (WATE-TV), Knoxville Radio History