KSAZ-TV (channel 10) is a television station in Phoenix, Arizona, United States, serving as the market's Fox network outlet. It is owned and operated by the network's Fox Television Stations division alongside MyNetworkTV station KUTP (channel 45). Both stations share studios on West Adams Street in Downtown Phoenix, while KSAZ-TV's transmitter is located atop South Mountain. Channel 10 was the third television station established in Phoenix; briefly a time-share between two separate stations, it went on to become a top-rated station as CBS affiliate KOOL-TV, a call sign used until being sold in 1982 and becoming KTSP-TV. After a call letter switch to KSAZ-TV in early 1994, the station switched from CBS to Fox as part of a major realignment of network affiliations later that year and was purchased by Fox in 1996. It produces twelve hours a day on weekdays of local news programming. History Shared-time era and early years While the Federal Communications Commission (FCC) worked its way toward ending a years-long freeze on new television station grants initiated in 1948, it issued a near-final version of the table of allocations for Arizona in 1951 that gave Phoenix channels 4 (changed to 3 the next year), 5 (KPHO-TV, the only pre-freeze station in the state), 8, and 10. KOOL (960 AM), Phoenix's CBS radio affiliate, had previously expressed interest in filing for channel 7 prior to the amended table being released, and on September 27, 1951, it applied for channel 10. KOOL was not alone in its interest. In July 1952, KOY (550 AM), the home of the Mutual Broadcasting System in Phoenix and one of the oldest stations in the state, filed its own bid. The two bids portended what could have been years of comparative hearings over who got the construction permit. To avoid this, in May 1953, KOOL and KOY struck a deal that would result in both getting construction permits to share time on channel 10. The time-sharing proposal, first used by the FCC in television in grants for channel 10 in Rochester, New York, and suggested to KOOL and KOY by the commission, was approved on May 27, 1953, with KOOL-TV and KOY-TV getting construction permits the same day. Under the proposal, the stations would alternate daytime and evening telecasting. KOOL was the CBS radio affiliate in Phoenix, and KOOL expressed a desire to similarly align its new television station, but this would