Morley Callaghan replaced McIlroy as moderator on March 20 , 1953 .
Gameshow moderator Kim McIlroy provided crossword puzzle - style clues to James Bannerman , Ralph Allen , editor of Maclean 's magazine , and two guest panelists .
Morley Callaghan replaced moderator as moderator on March 20 , 1953 .
Gameshow moderator Kim McIlroy provided crossword puzzle - style clues to James Bannerman , Ralph Allen , editor of Maclean 's magazine , and two guest panelists .