About KELOKELO signed on the air on May 19, 1953 as South Dakota's first television station. It was owned by Midcontinent Media, a theater and broadcasting conglomerate, along with KELO radio (AM 1320 and 92.5 FM). At the time, KELO was a primary NBC affiliate, but it also carried programming from ABC, CBS, and DuMont.
After KSOO-TV (now KSFY-TV) signed on in 1960, KELO switched its primary affiliation to CBS and has remained with the network ever since. As a result of this affiliation change, KELO became South Dakota's first and longest-running CBS affiliate.