sentences:  Because WKZO was a CBS Radio affiliate, WKZO-TV was primarily a CBS outlet, although as the only TV station in Kalamazoo, it also carried shows from NBC, ABC and the DuMont Television Network in its early days.The TV station was sold in 1985 and its call letters switched to WWMT.In the 1970s, WKZO's playlist shifted to adult contemporary music.