In 1986, Steven D. King, an Atlanta businessman, successfully petitioned the Federal Communications Commission (FCC) to add channel 12 to St. George as its first full-service television allocation.

[9][10] Potential was also recognized for KUSG to possibly create a new media market for southern Utah that then could lead to KCCZ in Cedar City becoming a network affiliate as well.

[13] However, competing broadcasters, especially KCCZ, believed the deal gave KUTV an unfair advantage by allowing it to use translator infrastructure owned by local authorities.

[12][14] To defuse this controversy, KUTV management worked out deals with service companies who took over maintenance of the translators in Washington and Iron counties, and local ad insertion began in February 1992.

[22] As a result, Luken moved RTN operations to its headquarters in Chattanooga, Tennessee, and dropped all Equity-owned affiliates, including KUBX and KCBU, immediately.

[24] By June 2009, KUSG had dropped RTN (which rebranded to RTV that month) for This TV;[25] it then added programming from MyNetworkTV on September 20, 2010, and changed its call sign to KMYU on November 16, 2010.

[29] In 2017, Sinclair proposed the purchase of Tribune Media, which owned Salt Lake City Fox affiliate KSTU (channel 13).

[30] As part of divestitures related to the deal, Sinclair announced in April 2018 that it would have sold KMYU to Howard Stirk Holdings while continuing to provide services to the station.

[31] However, flaws with the deal in other cities—notably Chicago, Dallas, Houston, and St. Louis—resulted in the FCC commissioners designating the transaction for hearing before an administrative law judge in July 2018,[32] which led to its cancellation the following month.