 It also had a secondary DuMont affiliation.In 1957, the station changed its call letters to KOLD-TV, playing off its sister station, KOOL-TV (now KSAZ-TV in Phoenix).KOOL and KOLD remained sister stations until Autry's Golden West Broadcasters sold off KOLD to Universal Communications, the broadcasting arm of the Detroit-based Evening News Association, in 1969.