KHON-TV
KHON-TV first signed on the air on December 15, 1952 as a primary NBC affiliate, KONA-TV, occupying the channel 11 position. It also had a secondary affiliation with DuMont (which it later shared with KULA-TV, now KITV, after it signed on in 1954) until its demise in 1955. The station, which is Hawaii's second-oldest television station (behind KGMB, originally on channel 9, now on channel 5), was originally owned by Herbert Richards. Two years later in 1954, the "Honolulu Advertiser" purchased the station. On October 16, 1955, KONA changed channels from 11 to 2 due to the lower VHF positions (2 to 6) having the most powerful ERPs at the time. The channel 11 frequency now belongs to PBS member station KHET. In 1956, KONA was sold to Pacific and Southern Broadcasting, the forerunner of Combined Communications. KAII signed on in 1958, with KHAW following in 1961. In 1965, the station's call letters were changed to the current KHON-TV.
KITV
Originally, the KHVH-TV calls belonged to a then-independent station that operated on VHF channel 13 in Honoulu when it began operations on May 5, 1957, but a year later on May 7, 1958, KHVH's parent company Kaiser Broadcasting would acquire KULA for $685,000. Since FCC rules prohibit a broadcaster from owning two TV stations in one market at the time, Kaiser returned the channel 13 license back to the FCC, allowing KHVH to merge with KULA on July 16, 1958 and change the channel 4 call letters to KHVH-TV in 1959. Kaiser then later sold the station to Western Telestations in December 1964 to help fund its new chain of independent stations on the U.S. mainland. Western Telestations became a wholly owned subsidiary of Lexington, Kentucky-based Starr Broadcasting Company in 1973 for $4 million. Around that time, the station adopted its present-day KITV call letters (standing for "Island TeleVision) to reflect its service of broadcasting to the Hawaiian Islands.