 In 1990 the country music was replaced with Oldies, with the station airing full-service format with a strong emphasis on local issues.It continued to air this format until its sale to the Children's Broadcasting Corporation in 1997.In January 1997, the station was purchased by Children's Broadcasting Corporation for $3.9 million, and it became the Chicago affiliate of the "Radio AAHS" network, airing children's programming.