KEZT first aired programming from The Box in the 1990s and 2000, later affiliating with MTV2 in 2001 after The Box ceased operations. The station switched to Spanish-language programming briefly in 2002 as a charter affiliate of the newly-launched Telefutura (now UniMás). When KTFK-TV (channel 64) was acquired by Univision Communications (now TelevisaUnivision) in 2003, it assumed the Telefutura affiliation in 2004 and channel 23 switched back to English-language programming as an affiliate of HSN. This made KEZT one of two television stations owned by Univision at the time to broadcast in English (along with KUVI-TV, the UPN affiliate at the time in Bakersfield, California); however, it re-aired a Spanish-language newscast and two Spanish-language public affairs programs from KUVS on Sunday mornings to meet Federal Communications Commission (FCC) requirements regarding local programming on Class A television stations.
In 2014, the HSN affiliation was dropped and KEZT began repeating KUVS-DT (KUVI-DT, at the time, a MyNetworkTV affiliate, became Univision's sole remaining English-language station once again). To accommodate these changes, the station added three new subchannels, expanding from one SD channel to four channels (with two HD channels in 5.1 surround sound for Spanish programming and two SD channels for English programming).
Since it was a Class A low-power analog station, it stayed on the air well after the June 2009 cutoff, but left the air on January 26, 2012. It was replaced with a digital channel (in standard definition with 2-channel sound) the same day.