 The 1980s brought a series of changes to 1450 AM, beginning with a 1983 sale of 84 percent of the stations to Kenneth R. Greenwood for $310,000 in October 1983 that provided immediate cash relief to O'Kieffe.Four months later, Greenwood sold the pair to Oklahoma-based Swab-Fox Services.In May 1984, KGRE and KYOU switched call letters, with KYOU moving to the FM to project a more regional image while KGRE at 1450 AM remained focused on Greeley; the FM station is now KKSE-FM, since moved from Greeley to Broomfield, Colorado.