The first Doraemon manga episode was published in 1969 in the Japanese children's magazine, Shōnen Sunday . The series was an instant success, and its popularity led to the creation of numerous television anime adaptations, films, and merchandise. The anime series, produced by Studio Gokumi, premiered in Japan in 1979 and ran for 26 episodes. Since then, there have been several reboots, including the 2005 series, which consisted of 156 episodes.