<Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Th> Related shows </Th> <Td> Adventures of Sonic the Hedgehog Sonic Underground </Td> </Tr> <P> Sonic the Hedgehog (also known as Sonic SatAM) is an American animated television series based on the video game series of the same name . It was story edited by Len Janson and produced by DiC Entertainment, Sega of America, Inc., and the Italian studio Reteitalia S.p.A. It is the second of DiC's Sonic cartoons, following Adventures of Sonic the Hedgehog . It features a more dramatic and dark story, depicting Sonic as a member of a band of freedom fighters battling to overthrow Doctor Robotnik . The program aired for two seasons on ABC from September 18, 1993 to December 3, 1994 . </P> <P> The series takes place on Mobius, a planet mostly populated by anthropomorphic animals . A warlord and scientist named Dr. Robotnik takes over the city of Mobotropolis (renaming it Robotropolis) and uses a machine called the Roboticizer to turn most of the city's inhabitants into robotic slaves . A handful of citizens escape to Knothole, a village hidden within the Great Forest . Led by Sonic and Princess Sally, the citizens, now calling themselves the Freedom Fighters, battle to liberate Mobius . </P>

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