The station would have an FM companion broadcasting on 99.9 MHz starting on October 16, 1947 (today's WMXC), followed by television partner WKRG-TV on September 5, 1955. Like competitor WABB-FM, WKRG-FM was a simulcast of the AM station before finding its own format of beautiful music in 1965. In March 1970, the Federal Communications Commission enforced new rules preventing future radio and television ownership combinations in the same market, which allowed the stations of WKRG-TV, Inc. to remain standing, or "grandfathered".