In 1973 , the station was sold to RKO General for $ 2.4 million . The new owner changed the call letters to '' ' WFYR ' '' in March 1973 . The letters '' FYR '' , standing for " Fire " , was a reference to the famous Great Chicago Fire . The station adopted an automated oldies format , using Drake-Chenault 's '' Classic Gold '' package
Great Chicago Fire
Great Chicago Fire
WKSC-FM