It airs an adult standards and oldies format, branded as Zoomer Radio, with the slogan "The Original Greatest Hits".

[2] Due to its transmitter power and southern Ontario's flat land, CFZM has an unusually large daytime coverage area, equivalent to that of a full-power FM station.

Its grade B signal reaches as far east as Utica, New York, as far south as Pittsburgh and as far west as Lansing, Michigan.

At night, with a good radio, it can be heard around most of the eastern half of North America, including three-fourths of Canada.

Its license was held by what is now known as Whiteoaks Communications Group, a company owned by broadcaster Howard Caine and a number of minority investors.

The applications were granted, and CHWO moved to the 740 frequency on 8 January 2001, leasing CBL's former transmitter in Hornby from the CBC.

[6] In 2012, Zoomer Media was one of 27 applicants for an FM station at 88.1 MHz, for the purpose of simulcasting CFZM in the city of Toronto, where the AM signal is often difficult to hear.

[7][8] On 27 April 2015, MZ Media received CRTC approval to operate a nested FM transmitter in downtown Toronto to rebroadcast CFZM at 96.7 MHz with an average effective radiated power (ERP) of 22.4 watts (maximum 82 watts) with a height above average terrain (HAAT) of 280.1 metres (919').