American Chopper is an American reality television series that aired on Discovery Channel, produced by Pilgrim Films & Television. The series centered on Paul Teutul Sr., and his son Paul Teutul Jr., who manufactured custom chopper-style motorcycles. Orange County Choppers 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.