The English-language versions of the first 51 episodes was licensed by Funimation in May 2008, and released in North America on DVD from March 31, 2009 to January 5, 2010. The anime made its North American television debut on the Funimation Channel in September 2010. The first 51 episodes were released on four DVDs by Madman Entertainment from August 19, 2009 to May 13, 2010, and a DVD box set was released on June 6, 2012. In the United Kingdom, Manga Entertainment released the first season in four parts from February 22 to October 18, 2010. A box set was released on December 6, 2010. On June 30, 2016, it was announced that Funimation had acquired the rights to the anime's second season. In August 2017, Funimation announced they would release the series' second half on home media version starting on October of the same year. In August, Crunchyroll started streaming the first 25 episodes of the series.