 In 1980, in response to the growing popularity of FM radio, WJLB-AM 1400 switched call signs and formats with its ethnic sister station, WMZK-FM 97.9.WJLB-FM was updated to the then-new urban contemporary format and has been a top-rated station in Detroit since.However, WJLB-FM dropped Steinberg's show, and Martha Jean the Queen found herself without a radio home until 1982, when a Steinberg-led group called TXZ Corporation purchased WMZK-AM 1400 and changed the calls to WQBH (the calls stood for "Queen Broadcasts Here").