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KNBC, channel 4, is an NBC owned-and-operated television station located in Los Angeles, California, United States. KNBC is owned by the NBC Owned Television Stations group, and operates as part of a television duopoly with Corona-licensed KVEA (channel 52), an O&O of the Spanish-language Telemundo network; both networks are owned by NBCUniversal, a subsidiary of Comcast. KNBC's studios and offices are located in the Universal Studios Hollywood backlot, and its transmitter is located on Mount Wilson. In the few areas of the western United States where an NBC station is not receivable over-the-air, KNBC-TV is available on satellite television through DirecTV. ==History== Channel 4 first went on the air as KNBH (standing for "NBC Hollywood") on January 16, 1949.〔"KNBH (TV); new NBC outlet is sixth TV station in L.A." ''Broadcasting - Telecasting'', January 17, 1949, pg. 34. ()〕 It was the penultimate VHF station in Los Angeles to debut, and the last of NBC's five original owned-and-operated stations to sign on. Unlike the other four, KNBH was the only NBC-owned television station that did not benefit from having a sister radio station. The NBC Radio Network had long been affiliated with KFI in Los Angeles, though that relationship did not extend into television in August 1948 when KFI-TV (channel 9, now KCAL-TV) signed on the air.〔"L.A.'s 'Mt. Millions'." ''Broadcasting - Telecasting'', December 27, 1948, pg. 76. ()〕 When KNBH signed on, it marked the debut of NBC programs on the West Coast. The station changed its callsign to KRCA (for NBC's then-parent company, the Radio Corporation of America) on October 18, 1954.〔"RCA replaces NBC in O&O calls." ''Broadcasting - Telecasting'', October 4, 1954, pg. 78. ()〕 The call letters were changed again on November 11, 1962, when NBC moved the KNBC identity from its San Francisco radio station (which became KNBR) and applied it to channel 4 in Los Angeles.〔("KNBC to L.A." ''Broadcasting'', November 12, 1962, pg. 72 )〕〔"KRCA is now KNBC" ad in ''Los Angeles Times'', November 12, 1962.〕 Channel 4 originally broadcast from the NBC Radio City Studios on Sunset Boulevard and Vine Street in Hollywood. In November 1962, the station relocated to the network's color broadcast studio facility in suburban Burbank. NBC Color City, as it was then known, had been in operation since March 1955, and was at least four to five times larger than Radio City, and could easily accommodate KNBC's locally produced studio programming. NBC Radio's West Coast operations eventually followed channel 4 to Burbank not too long after. On October 11, 2007, NBCUniversal announced that it would put its Burbank studios up for sale and construct a new, all-digital facility near the Universal Studios backlot in Universal City, in an effort to merge all of NBCUniversal's West Coast operations into one area. As a result, KNBC, KVEA and NBC News' Los Angeles bureau moved to a new digital facility on the Universal lot formerly occupied by Technicolor SA. The studio opened on February 1, 2014. In fall 2007 with digital broadcast roll out, the station began broadcasting a 24/7 newschannel News Raw on a subchannel.〔Allison Romano. (3/9/2008) (Local Stations Multiply ). (Broadcasting & Cable ).〕 On January 16, 2009, KNBC celebrated its 60th anniversary with an hour-long tribute to the station, featuring past and present anchors, hosts, other popular on-air staff, and major news stories. KNBC and its other NBC owned-and-operated stations introduced a new layout for their websites in July 2009. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「KNBC」の詳細全文を読む スポンサード リンク
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