KOLD-TV (channel 13) is a television station in Tucson, Arizona, United States, affiliated with CBS. It is owned by Gray Television, which provides certain services to Fox affiliate KMSB (channel 11) and MyNetworkTV affiliate KTTU (channel 18) under a shared services agreement (SSA) with Tegna Inc. The three stations share studios on North Business Park Drive on the northwest side of Tucson (near the Casas Adobes neighborhood). KOLD-TV's primary transmitter is atop Mount Bigelow, with a secondary transmitter atop the Tucson Mountains west of the city to fill in gaps in coverage. Established in February 1953, KOLD-TV is the second-oldest television station in the state and was the first on air in Tucson. It has been affiliated with CBS for its entire history. The station produces local newscasts that, since the 2000s, have been competitive in the local ratings. History Construction and Autry-Chauncey ownership In the wake of the Federal Communications Commission (FCC) lifting its freeze on the award of new television stations, three Tucson radio stations applied for three channels. The Old Pueblo Broadcasting Company, owner of KOPO (1450 AM) and owned by Gene Autry and Tom Chauncey, filed for channel 13 without opposition on June 21 and was granted a construction permit to build on November 12. KOPO-TV was built relatively quickly: construction got underway in early December on an interim transmitter facility mounted on the AM radio tower, as towers were not yet available, and on a television addition to the KOPO radio facility on West Drachman Street. On January 13, 1953, at 1:13:13 p.m., the KOPO-TV transmitter was turned on. No programming was aired, as construction on the remainder of the television addition to the building was still in progress, until February 1, when the station began to carry CBS and DuMont Television Network programming. The day before, a dedicatory program was broadcast from the studios. Network presentations had to be aired from kinescopes until a coaxial cable hookup was completed in September to be shared by KOPO-TV and new station KVOA-TV. KOPO radio and television became KOLD radio and television on April 30, 1957. The KOLD call letters had been used by the Autry station in Yuma until it was sold; that outlet became KOFA and closed in 1963. (The designation also paired well with KOOL radio and television in Phoenix, which was commonly owned, and as was done in Phoenix, the phones were answered