In 1933, many North American stations changed frequencies. An even bigger mass frequency change occurred on March 29, 1941, when all but a few North American radio stations were effected.
In 1985, CKDA/CFMS-FM founder David M. Armstrong died at age 65, and his wife Sheridan inherited the stations. Mini bio and picture from vancouverbroadcasters.com: Radio pioneer; CFCT Victoria circa 1940; sales CKMO Vancouver 1941; production/sales Prairie stations early 1940s; CKNW New Westminster 1944-1949; founder CKDA Victoria 1950; founder sister station CKDA-FM Victoria 1954; co-founder CHEK-TV Victoria 1956.