About KTTV FOX11 LAKTTV's origins can be traced to December 1946, when the station's license and construction permit was secured by the Times Mirror Company, publishers of the Los Angeles Times. It was one of five licenses that were granted simultaneously by the Federal Communications Commission (FCC) to parties interested in launching commercial television stations in Los Angeles. In 1948, CBS, which owned KNX radio, purchased a 49% interest in the station and assisted in completing its construction in exchange for making channel 11 the network's Los Angeles television outlet. KTTV began operations on January 1, 1949 and was operated initially by KTTV, Incorporated, the Times/CBS-owned holding company. The station's first telecast was the Tournament of Roses Parade, which channel 11 would air every New Year's Day until 1995.
In May 1950, Times-Mirror purchased the Nassour Studios – a large motion picture facility on Sunset Boulevard in Hollywood, and centralized KTTV's operations there. CBS did not join Times-Mirror in the purchase; at the time its West Coast production facilities were based at Columbia Square, with its CBS Television City facility in the planning stages. KTTV converted the Nassour Studios into a major production house for television, producing programs locally and for the emerging syndication market. Prior to the move, KTTV operated out of several different facilities, including the former headquarters of Capitol Records (which was later the longtime home of KHJ radio and what is now KCAL-TV) on Melrose Avenue.
Later in 1950, CBS chose to acquire its own station in Los Angeles – pioneer station KTSL (channel 2, renamed KNXT and now KCBS-TV) – which was being spun off by the Don Lee Broadcasting System as a result of its sale to General Tire and Rubber. The KTSL purchase forced CBS to divest its interest in KTTV due to FCC rules in effect at the time that barred the common ownership of two television stations in the same media market; the Los Angeles Times would regain full ownership of channel 11 when the sales were finalized on January 1, 1951. KTTV's relationship with CBS ended after exactly two years as the network moved its programming to KTSL. A few months later, channel 11 agreed to become the new Los Angeles outlet of the DuMont Television Network, which had been affiliated with KTSL and, before that, KTLA (channel 5)