Sonic X is an anime series based on the Sonic the Hedgehog video game series. It originally ran consecutively on Sundays from April 6, 2003 to March 28, 2004 with a total of 52 episodes (collectively known as the Japanese "Series 1"). Episodes 53-78 (collectively known as "Series 2") initially after they were completed and produced, were not aired on TV released on DVD in Japan, but eventually became available through various streaming services years later (episodes 53-78 were first broadcast on TV in France and parts of Asia before they aired on UK/US television). However, as part of Kids Station's 2020 line-up of programming, it was announced that as part a tie in promotion for the Sonic the Hedgehog movie, the network would finally begin broadcasting the remaining episodes in 2020. This would mark the first time that the episodes would air in any format on Japanese television. For the English dub produced by 4Kids (which aired on FOX on the Saturday morning block FoxBox, later renamed 4Kids TV from August 23, 2003 to May 6, 2006), episodes 1-52 were referred to as Seasons 1-2, each 26 episodes long, and episodes 53-78 were referred to as Season 3, but the Saga Set DVD releases split the episodes into 6 Seasons, each containing 13 episodes. The airdates for TV Tokyo are listed on the left, while the airdates for the 4Kids English dub are on the right. For Season 3, air dates for the Japanese run reflect the first date of Kids Station's broadcasts. Series overview Episode list Season 1: The New World and Chaos Emerald Sagas (2003–04) Season 2: The Chaos, Shadow, Egg Moon, Emerl, and Homebound Sagas (2004–05) Season 3: The Metarex Saga (2005–06) Theme songs Japan Opening "Sonic Drive" April 6, 2003 - March 28, 2004 and April 4, 2004 - September 26, 2004 Lyricist: Takeshi Aida Composer / Arranger: Cher Watanabe Singers: Hironobu Kageyama and Hideaki Takatori Episode Range: 1-78 Endings April 6, 2003 - June 29, 2003 Lyricist / Composer / Arranger: Kazuyoshi Baba Singers: Run&Gun Episode Range: 1-13 July 6, 2003 - December 28, 2003 and April 4, 2004 - September 26, 2004 Lyricist: Shun Taguchi Composer / Arranger: Masataka Matsutoya Singer: Aya Hiroshige Episode Range: 14-39 and 53-78 " T.O.P." January 4, 2004 - March 28, 2004 Lyricists / Singers: KP Composer / Arranger: URU Episode Range: 40-52 United States Opening "Gotta Go