CKOS-FM, a radio station (91.1 FM) licensed to Fort McMurray, Alberta, Canada
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CKOS-TV, a defunct television station (channel 5) formerly licensed to Yorkton, Saskatchewan, Canada, now repeater CBKT-6
In March 1959, in response to CKX-TV's announcement that it would extend its signal further north, Harold Olson, director of Yorkton Television said his company's plans called for extension of CKOS' signal to the Manitoba communities of Dauphin, Swan River and Baldy Mountain.
In 2002, CBC purchased former privately owned affiliates CJFB-TV in Swift Current and CKOS-TV in Yorkton, turning both into rebroadcasters of CBKT.