Dan (rank) is by far the most recognizable symbol to the general public. The highest dan ranks are sometimes reserved for the founder or leaders of a style and only high-ranking students can be promoted to them. For example, only five living people hold a tenth dan in judo and only about thirty-five worldwide have been promoted to the rank since its inception; of those 10th dan promotions only fifteen were conferred by the Kodokan, all of them to Japanese judoka. This has led to upper level ranks becoming extinct in some arts. In other styles, the dan ranks are not the
Judo in Canada The first coverage of Judo on English television appears to have been in 1956, starting with a demonstration by Fred Okimura and assistants on the "Vic Obeck Show", and then in an episode of the information program "Tabloid", titled "From foe to friend: Japanese culture in Canada". The episode covers several different elements of Japanese culture, and includes a Judo demonstration by Frank Hatashita and his daughter Patsy Yuriko Hatashita. Four other programs ("Around Town", "Graphic", "Hobby Corner", and "Spotlight") aired episodes that included Judo demonstrations or interviews with judoka from 1957–59. In 1971 the children's show "Alphabet Soup" ran