One of the shows characters was named Mr. X. Not to be confused with the American "Howdy Doody" character with the same name, the Canadian Mr. X would teach history to the children watching. To do so, he would travel through space and time in what he called his “Whatsis Box”. If this sounds familiar, one must point out that Sydney Newman, one of the Canadian show’s creators, later moved to England, where he help to create the BBC program "Doctor Who."