Jim is most recognized for his theme music, original songs, and score for Nickelodeon's hit animated series Hey Arnold!, which has aired in over 70 markets worldwide. Most recently, Jim scored Hey Arnold: The Jungle Movie, the highly-anticipated return to television after a 13-year hiatus. The film, which features an update to the iconic theme song, picks up after the cliffhanger ending of Hey Arnold: The Movie, and finds Arnold and friends searching for his parents in South America. He also scores the PBS Kids show, Ready Jet Go!