KTTU (TV)
KTTU (channel 18) is a television station in Tucson, Arizona, United States, affiliated with MyNetworkTV. It is owned by Tegna Inc. alongside Fox affiliate KMSB (channel 11); Tegna maintains a shared services agreement (SSA) with Gray Television, owner of CBS affiliate KOLD-TV (channel 13), for the provision of studio space and technical services while maintaining control of programming and sales. The three stations share studios on North Business Park Drive on the northwest side of Tucson (near the Casas Adobes neighborhood); KTTU's transmitter is located atop Mount Bigelow.
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| Branding | My18 |
| Programming | |
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| Ownership | |
| Owner |
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| Operator | Gray Television, via SSA |
Sister stations | KOLD-TV, KMSB |
| History | |
First air date | December 31, 1984 |
Former call signs | KDTU (1984–1989) |
Former channel number(s) | Analog: 18 (UHF, 1984–2009) |
Former affiliations |
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Call sign meaning | No meaning |
| Technical information | |
Licensing authority | FCC |
| Facility ID | 11908 |
| ERP | 480 kW |
| HAAT | 1,123 m (3,684 ft) |
| Transmitter coordinates | 32°24′56″N 110°42′52″W |
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Public license information | |
Channel 18 was built by the Roman Catholic Diocese of Tucson and began broadcasting at the end of 1984 as KDTU. The station, intended as a family-friendly outlet, proved to be a popular—but commercial—independent station, as well as a boondoggle for the diocese, which lost $15 million between 1984 and 1989 and unloaded it at a loss to Clear Channel Communications. The call sign was changed to KTTU-TV after the sale. Since 1991, KMSB and KTTU have been either commonly operated or owned.