From Sonic Retro
Sonic X (ソニックX) is a Sonic the Hedgehog television series, based roughly on the storylines of the Sonic Adventure series. It was animated and produced in Japan by TMS Entertainment with the partnership of Sega and Sonic Team. Season 1 comprised 52 episodes and was aired in Japan, the US, and Europe. Soon after season 1 ended, a second season of 26 additional episodes was produced and originally aired in France. None of these season 2 episodes were ever shown in Japan, but it is interesting to note that a full Japanese language track had been recorded for them, as evidenced by its presence on the VCDs released in China. There is no intention to create any new episodes of the show.
In 2003, 4Kids Entertainment licensed Sonic X for American television broadcasting, and it is currently airing on 4Kids TV (formerly the Fox Box). The U.S. licensing is a joint effort between 4Kids and ShoPro Entertainment. Despite the series doing less than stellar in Japan, the series gained popularity abroad. This prompted Sega to buy shares in TMS Entertainment, which was in danger of bankruptcy at the time.
In June 2012, following 4Kids' bankruptcy, due to a lawsuit on the Yu-Gi-Oh! franchise, the U.S. rights to Sonic X were sold to Kidsco Ventures, a subsidiary of Saban Media.
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