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.
KTEN
KTEN's history traces back to 1952, when Eastern Oklahoma Television Inc.—a locally based company owned by Bill Hoover, C. C. Morris and Brown Morris, who also owned radio stations KADA (1230 AM) in Ada and KWSH (1260 AM) in Wewoka through their Oklahoma Broadcasting Company subsidiary – applied with the Federal Communications Commission (FCC) for a license to operate a television station on VHF channel 12 (the 1952 assignment of the frequency to the Sherman–Ada media market under the Sixth Report and Order consequently resulted in the FCC also moving the channel 12 allocation originally assigned to Waco, Texas westward to Abilene—where it would become occupied by present-day ABC affiliate KTXS-TV—to avoid interference with any Sherman-Ada station that would be assigned to that channel). Hoover's firm purchased a plot of land located north of Ada with the intention to build a studio and transmitter facility for the station, for which it originally filed to use KEO as its call letters. Shortly after the FCC granted the license application to the Hoover group (now given the call letters KEOK) in 1953, Eastern Oklahoma Television reached an agreement with the FCC to assign its proposed station to VHF channel 10, a second television frequency allocated to the Sherman–Ada market under the Report and Order memorandum; the group subsequently applied to use KTEN as its call sign, becoming the first applicant to incorporate their station's channel number into its call letters in an FCC license filing.