The station rose in popularity in Toronto in the late 1950s and early 1960s; though it never supplanted perennial Toronto ratings champ CFRB at the top of the ratings chart, it was still a major broadcasting powerhouse with a particular appeal to the teen market. As the station became more successful, it also built yet another new transmitter in Mississauga, Ontario (a few miles west of the current Toronto city line) along the Lake Ontario shoreline, and raised its power once again to its current 50,000 watts around the clock. In the late 1950s, CHUM was calling itself "Radio One", as its ratings continued to increase. An important part of CHUM's success was the station's unpredictable morning man Al Boliska, who joined CHUM in October 1957, after working at station CKLC in Kingston, Ontario. By 1959, Boliska had made a name for himself as a disc jockey who got listeners talking. He also made them laugh, and became known for telling what he called the "World's Worst Jokes". Boliska also did a number of stunts, such as taking part in a professional wrestling match with Whipper Billy Watson. When he lost, that led to another stunt, where Boliska stayed away from his show for several days, saying he was now too discouraged by the loss to do his show. A hypnotist was called in, and Boliska's self-esteem was restored. Boliska left CHUM in late 1963 to go 'across the street' to CKEY. He was replaced by WKBW Buffalo radio and TV personality Jay Nelson, popularly known as "Jungle Jay" from his role as host of a children's show on Buffalo's Channel 7 which was also popular among Toronto youngsters. He would be followed by housewives' jock John Spragge; singer/DJ Mike Darow; Pete Nordheimer, replaced in 1961 by Bob McAdorey, teen DJ Dave Johnson, and all night DJ Bob Laine. Later additions to the CHUM DJ lineup included Duff Roman and Brian Skinner, both of whom came from rival Toronto rocker CKEY (then owned by Jack Kent Cooke). In the late 1960s and early 1970s, CHUM DJs included Duke Roberts (also known as Gary Duke for a time), Johnny Mitchell (better known today as Sonny Fox), J. Michael Wilson, Tom Rivers, Scott Carpenter, Jim Van Horne, John Rode, Don Reagan, John Majhor, Mike Cooper, Daryl B, Terry Steele, Mike Holland and morning man Roger Ashby. Among their later night-time hosts was