Anpanman
The Anpanman picture book series which debuted in October 1973 has published over 150 picture books under different series labels.  These were written and illustrated by Takashi Yanase until his death. Animation by TMS Entertainment entitled Soreike! Anpanman consists of a single episode. Over 1300 episodes broadcasted since October 3, 1988. A total of 32 full-length films have been released and these have the same general plot. Moreover, Animation shorts,  Christmas specials  and video games have been produced.