The station first signed on the air on December 6, 1998, as KAZG, originally operating as an
independent station. It became the Salt Lake City market's
UPN affiliate, after the network disaffiliated from
KJZZ-TV (channel 14) in January 2001. This change came about due to several factors, most notably a disagreement over affiliate compensation, preemption terms, and what KJZZ ownership saw as the lack of financial viability of urban-themed programming in the Salt Lake City market. In October 2000, KJZZ made national headlines when it demanded the right to back out of its UPN contract if UPN increased its "urban/ethnic programming" to more than two hours per week. UPN responded by moving their programming to KAZG, which then changed its call letters to KPNZ. In August 2001, the station moved its operations from its original studio facility in Ogden to the International Center in Salt Lake City. On January 24, 2006, the
Warner Bros. unit of
Time Warner and
CBS Corporation announced that the two companies would shut down
The WB and UPN and combine the networks' respective programming to create a new "fifth" network called
The CW. Later that year, KPNZ stopped using UPN branding on its website, referring to the station as "Utah's 24". On June 5, 2006, KPNZ removed UPN programming from its schedule in retaliation for being passed over by both The CW (which went to former WB affiliate KUWB, channel 30, now
KUCW) and another new netlet,
News Corporation's
MyNetworkTV (which at the time went to KJZZ-TV, which has since reverted to independent status). On May 30, 2007, Utah Communications,
LLC, the licensee of KPNZ, filed an application with the FCC to sell the station to
Liberman Broadcasting, a media company whose television properties operated as
Spanish-language independent stations at the time. The sale was completed on November 30, 2007. After Liberman took over, it continued to broadcast entirely in English until February 2008, when it officially adopted a Spanish-language programming format. On September 14, 2009, KPNZ and the other Liberman television stations became owned-and-operated stations of the new Spanish-language network
Estrella TV. On June 20, 2018, Liberman announced it was selling KPNZ to
HC2 Holdings; the sale was completed on October 26. Upon the sale's completion, the station's affiliation was changed to
Azteca América, a network owned by HC2 Holdings. On March 18, 2021, it was announced that KPNZ and
sister station KWKB in
Iowa City, Iowa, would be sold to
Marion, Illinois–based Tri-State Christian Television for $4 million. The sale was completed on August 2. ==Legal battles==