CHBM-FM

CHBM-FM is a radio station in Toronto, Ontario, Canada broadcasting at 97.3 FM. The station currently broadcasts a classic hits music format branded as "Boom 97.3". CHBM's studios are located at Yonge Street and St. Clair Avenue in Toronto's Deer Park neighbourhood, while their transmitter is located atop the CN Tower. The station is owned by the Stingray Group.
The station's playlist contains songs from the 1970s, 1980s and 1990s, with a core focus on music released in the 1980s, while also playing select songs from the 1960s and early 2000s.
History.
The station was launched at 9:00 a.m. on May 18, 1987 by Redmond Broadcasting, with the call letters CJEZ-FM, and carried an easy listening format under the branding "Easy 97". Staff for the new station included many long-time Toronto personalities, such as Jay Nelson, Russ Thompson, Bill Anderson and Carl Banas. In the early 1990s, it changed its moniker to "Lite 97", but soon after, it changed its format to classic hits as "Z97.3". In February 1995, Redmond sold the station to Telemedia and on June 30, at 5:30 AM, the station changed monikers to "97.3 EZ Rock". The slogan was "The Heartbeat of Toronto", and aired an adult contemporary format. "EZ Rock" launched with the intent of having an audience of mainly women ages 25–44, and the Toronto station became the flagship when several other stations owned by Telemedia at the time broadcasting a similar format also gained the "EZ Rock" branding.
In 2002, Standard Radio bought Telemedia and kept CJEZ under their ownership, while some of the other EZ Rock stations were sold to either Rogers Communications or Astral Media.
Boom 97.3 (2009-present).
On December 24, 2009, during its standard Christmas music run during the holidays, EZ Rock's website was changed completely by hosting only a countdown clock and a posted message urging listeners to tune in on December 26 at 9:00 a.m. On December 26, at 6 a.m., after playing EZ Rock's final song (which was Christina Aguilera's version of "This Christmas"), the station began stunting with a recorded message on how to "view" the launch of the new station.
Finally, at 9 a.m., the station ended its 14-year run with AC, and flipped to classic hits with the branding "Boom 97.3, Toronto's Greatest Hits", adopting the "Boom FM" branding used by some of Astral's small-market French-language stations in Quebec. The first song played on "Boom" was "Don't Stop Believin'" by Journey. CJEZ's call letters were changed the following day to CHBM-FM. The station's airstaff remained intact for a time, but in May 2011, Humble Howard and Colleen Rusholme were let go by the station.
In March 2013, the Competition Bureau approved a proposal by Bell Media to acquire Astral Media, under the condition that it divest itself of several television services and radio stations. Following the closure of the merger, CHBM was placed in a blind trust pending its eventual sale. On August 26, 2013, Newcap Radio announced it would acquire CHBM, along with four other former Astral stations, for $112 million. The deal was approved by the CRTC on March 19, 2014 and the sale closed on March 31, 2014.