Editing CBLA-FM (section)

===<span class="anchor" id="section_CKGW_and_CBL_anchor"></span> CKGW and CBL ===
CBLA's origins date back to March 5, 1928. That was the official [[sign on]] of '''CKGW''' at 910 [[AM broadcasting|AM]], a commercial station owned by [[Gooderham and Worts]], with studios at the [[King Edward Hotel]].<ref>{{Cite web|date=2017-11-23|title=CKGW: Canada's Cheerio Station|url=https://www.toronto.ca/city-government/accountability-operations-customer-service/access-city-information-or-records/city-of-toronto-archives/whats-online/web-exhibits/ckgw-canadas-cheerio-station/|access-date=2020-08-09|website=City of Toronto|language=en-CA}}</ref> However, Gooderham & Worts had been operating the station on an experimental basis from as early as 1925.<ref>[http://www.broadcasting-history.ca/listing_and_histories/radio/crct-ckgw-am History of CRCT (CKGW)] {{Webarchive|url=https://web.archive.org/web/20211215074729/http://www.broadcasting-history.ca/listing_and_histories/radio/crct-ckgw-am |date=2021-12-15 }} - [[Canadian Communications Foundation]]</ref>

Due to the instability of frequency allocations in North America at the time, the station's dial position changed several times over the next number of years, to 960, 690 and finally [[Clear-channel station|clear channel]] 840. In 1932, the station was leased by the [[Canadian Broadcasting Corporation|CBC]]'s predecessor, the [[Canadian Radio Broadcasting Commission]]. It used the [[call sign]] '''CRCT''' until 1937, when the station was purchased outright by the CBC and adopted the call letters '''CBL'''. It moved to a new transmitter facility in rural [[Halton Hills|Hornby]]. The 650&nbsp;ft guyed mast that the station transmitted from was for many years the [[List of tallest structures in Canada|tallest structure]] in all of Canada.<ref>{{Cite web |date=1999-08-30 |title=The Final Moments of CBL on 740. |url=http://www.nydxa.info/archive/1999/NYDXA0899.PDF |website=www.nydxa.info}}</ref>