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|Original network||Nickelodeon, Nicktoons, Canal J, TeenNick, Paramount Media Networks|
Hey Arnold! was an American animated television show on the Nickelodeon network. It was about a boy with a football-shaped head named Arnold, his "gang" of friends, and their lives in the fictional city of Hillwood. Each episode of Hey Arnold! ran for about 15 minutes each. In 2002, Nickelodeon made a movie from it. Arnold's best friends in his gang are Gerald, Sid, Stinky, Eugene, Rhonda, Phoebe, Lila, and Curly (who was voiced by Haley Joel Osment). Adult Arnold was voiced by Christopher Walberg.