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Wikipedia Entry for Yvonne Zanos
KDKA-TV is the CBS-owned-and-operated (O&O) television station in Pittsburgh. Its studios are located at One Gateway Center in Downtown Pittsburgh. It broadcasts its digital signal on UHF channel 25 (virtual channel 2) from its transmitter in Pittsburgh. Along with sister station KYW-TV, it is one of two television stations in Pennsylvania that has a callsign starting with a K. Both were former Westinghouse-owned stations that were part of Group W. The station went on the air on January 11, 1949, as WDTV (W DuMont TeleVision), owned and operated by the DuMont Television Network. To mark the occasion, a live television special aired that day from 8:30pm to 11pm, with live segments from CBS, NBC, ABC and Dumont.[1] It was one of the last stations to be granted a construction permit before the Federal Communications Commission imposed what turned out to be a four-year freeze on new licenses. It originally broadcast on channel 3, moving to channel 2 on November 23, 1952 to alleviate interference with WNBK in Cleveland (now WKYC-TV), which for several years was a sister station to KDKA-TV. Not long after moving to channel 2, it became the first station in the country to broadcast 24 hours a day, 7 days a week. [2] At the time, Pittsburgh was the sixth-largest market in the country (behind New York, Chicago, Los Angeles, Philadelphia and Detroit). However, until the lifting of the television "freeze" by the FCC in 1952, WDTV's only competition came from grade B signals from stations in Johnstown, Altoona, Wheeling and Youngstown. For five years after the freeze, only UHF signals arose in the Pittsburgh market to challenge the station (which became KDKA-TV in the mid-1950s) until 1957. (the only other VHF station in town was educational WQED). This was because the major cities in the Upper Ohio Valley are so close together that they must share the VHF band. After the FCC lifted the license freeze in 1952, it refused to grant any new commercial VHF construction permits to Pittsburgh in order to give the smaller cities in the area a chance to get on the air. At the time, UHF stations were unviewable without a very expensive converter. Even with a converter, the picture quality was marginal at best. UHF stations in the area faced an additional problem because Pittsburgh is located in a somewhat rugged dissected plateau, and UHF stations usually do not get good reception in rugged terrain.
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