KFAA-TV

Channel 29 was originally allocated to Dallas, and two construction permits were issued for the channel. One was to be KLIF-TV, the television counterpart to radio station KLIF (1190 AM), owned by Gordon McLendon. A second attempt was made in 1962 to launch KAEI-TV on channel 29. Owned by and named for Automated Electronics Inc., the station would have broadcast printed quotes, news, and weather information. Since television sets were not required to include UHF tuners until the All-Channel Receiver Act went into effect in 1964, the company proposed to lease converters and UHF antennas to companies to install in their offices.^[2] Though the group hoped to be weeks away from signing the station on the air and gave dates of April 15 and June 1 for a planned sign-on,^[3] AEI never put it into service. The company's assets were acquired in late 1963.^[4]

In 1966, three applicants filed to build new stations on channel 29—Grandview Broadcasting (which later took itself out of the running), Overmyer Communications, and Maxwell Electronics.^[5] In a successful bid to give both applicants a channel, Overmyer proposed changing out channel 29 for channels 27 and 33 at Dallas;^[6] Overmyer never built its station on channel 27, and Maxwell signed on KMEC-TV on channel 33 in October 1967.^[7]

In 1985, three applicants vied for a license to operate a television station on channel 29, including the Wise County Messenger newspaper, owned by former WBAP-TV (channel 5, now KXAS-TV) anchor Roy Eaton, whose petition had resulted in the allocation to Decatur.^[8] After a settlement was reached, the construction permit was granted to Decatur Telecasting, owned by Charlotte, North Carolina, housewife Karen Hicks, in December 1985.^[9] However, an unanticipated setback in the form of the sale of its planned tower site to new owners who would not allow the station to locate there led to years of delays and a sale to Word of God Fellowship, a ministry of Marcus and Joni Lamb.^[10] The Lambs sold the first station they had built, WMCF in Montgomery, Alabama, to finance the move to Texas.^[11] KMPX served as the basis for the launch of the Daystar Television Network on January 1, 1997.^[12] The network and KMPX operated from studios in Colleyville until moving to Bedford in 2002.^[13]

In 2003, Daystar acquired Denton-licensed noncommercial station KDTN (channel 2) from North Texas Public Broadcasting. KMPX was then sold to Liberman Broadcasting for $37 million^[14] in a sale that was finalized on January 13, 2004; after Liberman took over on that date, the station was converted into a Spanish-language independent station featuring programming distributed by the company. On September 14, 2009, KMPX became a charter owned-and-operated station of Liberman's Estrella TV network, which carried some programming seen during the station's tenure as an independent. Liberman Broadcasting became Estrella Media in February 2020, following a corporate reorganization of the company under private equity firm HPS Investment Partners, LLC.

Tegna Inc., owner of ABC affiliate WFAA (channel 8), purchased KMPX from Liberman on September 25, 2020, for $19 million.^[15] The deal included a five-year affiliation agreement between Estrella and Tegna, as well as an option for Estrella to purchase WFAA's VHF license.^[16] The transaction for KMPX was completed on November 20.^[17] The purchase allowed Tegna to begin simulcasting WFAA on a UHF-band transmitter, as virtual channel 8.8, to improve reception. Had the Estrella option been exercised, Estrella would have acquired the VHF facility of WFAA, essentially inducing a facility swap.

In 2022, Tegna filed to sell itself to Standard General and Apollo Global Management for $5.4 billion. KMPX and WFAA, along with KVUE in Austin and KHOU and KTBU in Houston, were to be resold to Cox Media Group.^[18][19] The sale was canceled on May 22, 2023.^[20]