In 1955, the saga of one of Canada's few "split" frequency AM stations began. Sun Parlor Broadcasters Ltd. obtained a license for CJSP (SP=Sun Parlor) in Leamington, Ontario. On 710 KHz with 250 watts, daytime-only, with two towers located four miles South of town, and a Northern directional pattern. The station was owned by John L. Moore, long-time Edmonton broadcaster Steve Moore's father, and Al Bruner, who would go on to found the Global Television Network in 1974. Everything changed in 1968. Rogers bought the station, it began broadcasting at night, but on a different frequency, and call letters changed to CHYR in the day, still on 710 KHz, and CHIR on 730 KHz at night. By then, CHYR was 10,000 watts using five towers of a six tower array during the daytime. Towers five and six were used for CHIR's 250 watts at night. This continued until 1993 when CHYR-FM replaced both stations.
In 1992 at 6:00 a.m., CKOC Hamilton dumped the call letters they'd had since original signon on May 1, 1922. Someone thought that the old CFUN call letters, CKMO, with MO standing for More Oldies, sounded better. Listeners complained, the station admitted it was a mistake, and CKOC returned at 5:30 a.m. on April 2, 1993.
In 1999, Newcap received CRTC approval to purchase CIRK-FM Edmonton from Craig. Newcap already owned CFCW-AM Camrose and CKRA-FM Edmonton. Ironically, CIRK and CKRA had been head-to-head competitors in 1980, as K-97 and K-96, respectively. Until CIRK complained to the CRTC that CKRA was not living up to its license, which had been originally approved for a Light Rock format. The CRTC agreed with the CIRK complaint, so CKRA became K-Lite, patterned after the U.S. "Light Rock and Less Talk" formats that had just begun to emerge. Despite the format's initial success, a pitched battle with the CRTC over the licensed components of the musical format would last for several years, and listeners came and (mostly) went as the format changed to try and meet CRTC requirements. CKXM-FM, not hampered by any format restrictions, soon moved to a format similar to the original K-Lite. And, beginning in the 1990s, the original K-Lite listener base was wooed to Easy Rock (CFMG-FM) with a mostly '80s Adult Contemporary format. Today, CKRA is Capital-FM, playing Oldies and '80s Top 40.
In 2005 at 4:00 p.m., when kids would be getting home from school, CHUM-owned CHBN-FM Edmonton signed on. GM at The Bounce was James Stuart, who had previously PD'ed CKNG-FM as Power 92.