 The station's original transmitter sat atop the Walker Bank Building.Channel 4 originally operated as an NBC affiliate owing to KDYL-AM's longtime affiliation with the NBC Red Network; the radio station had been one of the network's original 26 affiliates when it launched in 1926.In addition, the station also shared ABC programming with CBS affiliate KSL-TV (channel 5, now an NBC affiliate) until KUTV (channel 2) signed on in September 1954 as a full-time ABC affiliate.