KTXT-TV signed on from a converted building (the former Agriculture Pavilion) and a tower located at the new studios. The station installed a six-bay RCA antenna, used dual 1-5/8" feed lines, and a 500 watt RCA TT-500BL transmitter for an ERP of about 2,500 watts visual. In 1966, a grant bought the station a TT-6EL transmitter which raised power to 25,700 watts. In 1982–83 the station received a donated tower (former KAMR-TV Amarillo tower) and 12 bay antenna. This allowed the station to raise power to 60,600 watts visual. A Harris transmitter was installed in 1984 and the station converted to BTSC (stereo TV audio) operation.