No Overflix. John Gunther, a great traveler in many parts of the globe, presented on the American ABC channel the documentary program "John Gunther's High Road" from September 7, 1959 to October 1, 1960, namely 30 episodes. Two adventure trips filmed in distant places were broadcast: The first documentary film was shot exclusively for the show and the second film offered was a great classic adventure or exploit film by another director.