<Tr> <Td_colspan="2"> Website </Td> </Tr> <P> American Chopper is an American reality television series that is still on air on Discovery Channel from 2003, produced by Pilgrim Films & Television . The series centers on Paul Teutul Sr. (frequently called Senior), and his son Paul Teutul Jr. (also known as Paulie or simply Junior), who manufacture custom chopper - style motorcycles . Orange County Choppers is in Newburgh, New York . The contrasting work and creative styles of the father - and - son team and their resulting verbal arguments were the series' hallmark until 2008 when an explosive argument led to Paul Jr.'s termination and departure to start a competing chopper company, Paul Jr . Designs . </P> <P> The series originally aired on Discovery Channel beginning in March 2003 . In December 2007, the series moved to Discovery's sister channel TLC, starting off with an 18 - hour marathon . Its first TLC season premiered in January 2008 . Season 6 began in April 2009 but the series was canceled by TLC in February 2010 . In July 2010, TLC announced that the Teutuls would return in a new series, American Chopper: Senior vs. Junior . Senior vs. Junior premiered on TLC but was soon moved to Discovery halfway through the first season . Discovery Channel announced that the show would end with "The Chopper Live: The Revenge" show on December 11, 2012 after 10 seasons . </P> <Table> <Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (December 2015) (Learn how and when to remove this template message) </Td> </Tr> </Table>

When did american chopper go off the air