Historically, this station is perhaps best known as the second station in the Cleveland market to have utilized the WJMO call sign. During this period, WJMO carried a rhythm and blues/soul music format continuously from 1959 to 1999, reputedly longer than any other such station in the United States, and was one of the first major-market radio stations to have an African-American serve as their general manager. At the same time, a number of legal issues surrounding owner United Broadcasting, repeated technical violations committed, strained relations between station management and the station's staff and audience, and a controversial ownership transfer in 1992 attracted criticism and scrutiny by the public, the Southern Christian Leadership Conference (SCLC), and the Federal Communications Commission (FCC), at one point putting the station's broadcast license in question.