On December 10, 1983, the first VHS release of the series was made available in Japan. The series was also released on fifty LaserDiscs. Another VHS release across fifty cassettes began on March 17, 1998 and concluded on April 19, 2000. Two DVD boxed sets of the series were released between December 8, 2000 and March 9, 2001. These were followed by fifty individual volumes between August 24, 2001 and August 23, 2002. To celebrate the 35th anniversary of the anime a new HD transfer was created and released on Blu-ray in Japan. The first Blu-ray boxed set of the series was released on March 27, 2013, with the fourth box set scheduled for release on March 23, 2014. To promote the Blu-ray, the anime was rebroadcast in high definition on Kids Station.