RADIO

Station Signs Off: Without notice to listeners or staff, CBS Inc. Wednesday ended operations at WCAU-AM radio in Philadelphia, the station where William S. Paley launched the CBS broadcasting network in the 1920s. The network-owned station switched from its talk show and local news format, which had ratings problems for more than a decade, to “golden oldies” rock ‘n’ roll programming, much of it simulcast from WOGL-FM, another CBS-owned station in Philadelphia. A CBS spokesman said WCAU would adopt the call letters WOGL-AM. About 35 station employees were laid off in the move. Among the personalities losing air time was former Philadelphia mayor Frank Rizzo, who used his daily talk show to attack political opponents, including current Mayor Wilson Goode.