16 May 1968: CRTC approves an application by CJOY Ltd. to operate a new FM station in Guelph. The initial studio and office address is 50 Wyndham Street.
1 July 1969: CJOY-FM begins its first broadcasts. It is authorised for 106.1 MHz frequency, 50 000 watts effective radiated power and 75.9 metres (249 ft) antenna height.
26 July 1972: CJOY-FM and its associated AM station (CJOY-AM) are authorised to relocate their common offices and studios to 75 Speedvale Avenue East and have remained there since.
1975: CJOY-FM calls sign changes to CKLA-FM
1977: CJOY Ltd. assumes at least partial ownership of AM station CFTJ in Cambridge.
1980: CRTC approves relocation of both the CJOY AM and FM transmitters.
28 April 1987: Kawartha Broadcasting Co. Ltd. purchases CJOY Ltd. (CKLA-FM and CJOY-AM), including the associated Galt Broadcasting company which operates the Cambridge station formerly known as CFTJ (whose call sign became CIAM in 1987).
10 July 1992: The station's call letters are now CIMJ-FM, but begins to identify itself as “Magic 106.1 – Today’s Favorites”. The station format changes from easy listening to adult contemporary, featuring music from the 1970s to the 1990s.