cklg-fm initially began with an easy listening format, but in the fall of 1967, it started experimenting with rock music at night. in october that year, cklg-fm program director frank callaghan hired record store owner bill reiter (who later went on to become part of the dr. bundolo's pandemonium medicine show comedy troupe) to host the jazz/blues program "groovin' blue" on saturday evenings. cklg-fm soon shifted to become canada's first full-time fm rock music station on march 16, 1968, with the expansion of "groovin' blue" to six nights a week and the addition of tracks from rock, folk and popular albums. in 1970, cklg-fm added a two-hour daily talk show hosted by allen garr, which ran on the station until 1975. by 1973, cklg-fm had compiled a library of 3000 albums, and all its programming was aired live except on sunday mornings, with special programming on the station including the allen garr talk show, live concerts and a saturday sock-hop program. in 1976, under the guidance of new program director roy hennessy (a former morning host on cklg-am), the fm station made the gradual transition to a progressive rock format.