KCBS-TV (channel 2) is a television station in Los Angeles, California, United States, serving as the West Coast flagship of the CBS network. It is owned and operated by the network's CBS News and Stations division alongside independent outlet KCAL-TV (channel 9). Both stations share studios at the CBS Studio Center on Radford Avenue in the Studio City section of Los Angeles, while KCBS-TV's transmitter is located on the western side of Mount Wilson near Occidental Peak. Aside from being affiliated with CBS News, since 2017, KCBS-TV has had no connection to KCBS radio (740 AM) in San Francisco. The 2017 sale to Entercom (now Audacy) of KCBS radio and KCBS-FM (93.1) in Los Angeles ended almost seven decades of co-ownership among the three stations under CBS. History Early years (1931–1948) KCBS-TV is the oldest continuously operating television station in the western United States. It was signed on by Don Lee Broadcasting, which owned a chain of radio stations on the Pacific coast, and was first licensed by the Federal Radio Commission (FRC), forerunner of the Federal Communications Commission (FCC), as experimental television station W6XAO in June 1931. The station went on the air on December 23, 1931, and by March 1933 was broadcasting programming one hour each day on Mondays through Saturdays. The station used a mechanical camera, which broadcast only film footage in an 80-line image, but used all-electronic receivers as early as 1932. It went off the air in 1935, and then reappeared using an improved mechanical camera producing a 300-line image in June 1936. By August 1937, W6XAO had programming six days each week, with live programming starting in April 1938. By 1939, the station used a fully electronic system and the image quality was improved to 441 lines. At the time, an optimistic estimate of the station's viewership was 1,500 people. Many of the receiver sets were built by television hobbyists, though commercially made sets were available in Los Angeles. The station's six-day weekly schedule consisted of live talent on four nights, and films on two nights. By 1942, there were an estimated 400–500 television sets in the Los Angeles area, with Don Lee Broadcasting placing television receivers at the following public places: Wilshire Brown Derby, Kiefer's Pine Knot Drive-In, Vine Street Brown Derby, Griffith Planetarium, Miramar Hotel (Santa Monica), Hollywood Roosevelt Hotel and The Town House on Wilshire Boulevard. During World War II, programming