Space Tarzan (part 1)
Space Tarzan about prehistoric men and spacemen is Nobita's favorite show but he meets the star and finds it has gone over budget too much and is close to being canceled because of falling viewing figures. He decides to help him by going 150 million years into the past to get some real dinosaurs to replace the poor models they use in the show.
Aired 03/09/1979EP 133 - Space Tarzan (part 1)
Doraemon
Nobi Nobita is a 4th-grade boy in Tokyo. One day, a round, blue cat-style robot (minus ears) pops up in his desk drawer. Nobita's great-great-grandson (or something) lives in the 22nd Century, but thanks to Nobita's mistakes, the entire family is living in poverty. To rectify this, Nobita's descendent is sent Doraemon back to the past, to help prevent Nobita from making mistakes. Of course this is a difficult task since Nobita is the weakest and least intelligent child in his class. Doraemon does, however, have a 4-dimensional pocket on his front, which contains cool gadgets from the future. With these toys, Doraemon will try to help Nobita. Unfortunately, Nobita also has the bad habit of misusing Doraemon's gadgets and landing himself in yet more trouble?
(Source: AnimeNfo)