CKST (1040 AM) was a radio station in Vancouver, British Columbia, Canada. Owned by Bell Media, it last broadcast comedy-oriented programming, including stand-up comedy routines.

CKST's studios were located on Robson and Burrard Street in Downtown Vancouver, while its transmitters were located in Delta.

CKST went on the air for the first time on January 19, 1963, in Langley as CJJC, broadcasting on its original frequency of 850 AM with 1000 watts of power and offering a country format. The station's original owner was City & Country Radio Ltd., headed by former CJAV and CKNW personality Joe Chesney.

CJJC was given approval by the CRTC on December 15, 1970, to change its frequency and transmission power from 850 AM and 1000 watts to 800 AM and 10,000 watts, but the station waited until June 1975 to put the change into effect. In 1977, CJJC (which had been dealing with financial trouble for some time) rehired 23 of 32 staff members who were given 30 days notice on New Year's Eve. Parent company City & Country Radio was authorized to transfer all of the station's shares to a company run by Joe Chesney and Ernie Mykyte; Mykyte would become sole owner of CJJC in 1978 when he bought out Chesney's half-interest in the station.

CJJC and parent City & Country Radio were purchased on June 26, 1985 (following CRTC approval) by an ownership consortium of Saskatoon Telecable Ltd. (72%), Sam Folstad (18%) and L.M. McDonald (10%); later in the year, CJJC changed its call letters to CJUP and dropped its country format for Top 40 with Up Radio, AM 800 as its on-air name. In 1987, CJUP majority shareholder Saskatoon Telecable was purchased by Clint Forster and his family, and the station changed call letters again to the present CKST in 1988. On July 7, 1989, CKST increased its power to 25,000 watts and began broadcasting in stereo.

CKST switched formats to modern rock and adopted the on-air name Coast 800 on November 9, 1990. The station underwent major changes during the early part of 1992; on January 30, the CRTC authorized station owner Western World Communications (the former Saskatoon Telecable) to buy Vancouver station CIMA (which had begun operations on September 12, 1986, as CIOF, then CKXY, then CIMA) from Monarch Broadcasting Ltd., also granting permission to CKST to switch frequencies (from 800 to 1040), increase transmission power (from 25,000 watts to 50,000), relocate its transmitter from Aldergrove to Delta and move its operations from Langley to Vancouver. CIMA 1040 signed off for the final time on February 4, and CKST moved into CIMA's facilities and became Coast 1040 on March 9.

Plans were made to move CKST to the FM band (at 94.5 FM with 38,000 watts of power) in 1993, but were denied by the CRTC. CKST ended its modern rock format at midnight on September 30, relaunching with an adult standards format under the new on-air name Q104 (which was later dropped in favour of using the CKST calls). The station was purchased by Ronald Dixon and Gary Mathiesen in 1994.

CKST was in the process of being sold when Dixon was killed in a car accident in Mexico on September 15, 2000. The station was sold to Grand Slam Radio Inc., which assumed ownership on February 1, 2001, switched CKST to an all-sports format and adopted the on-air name "The TEAM 1040" on April 25, and joined CHUM's TEAM all-sports network on May 7. The station's founder, Joe Chesney, died in Langley on November 10, 2001, at the age of 82, and CHUM purchased CKST on February 10, 2003, adding to the company's ownership of CFUN, CHQM-FM and CKVU-DT in Vancouver.