Alps no Shoujo Heidi
English name: Heidi: Girl of the Alps
Genres: Drama
Type: TV, Episodes: 52
Aired: Jan 6, 1974 to Dec 29, 1974
Studio: Nippon Animation
Source: Book
Rating: PG - Children
Synopsis:
After becoming an orphan, Heidi is forced to live with her grandfather Öhi, who lives in the Alps. She learns he's a very bitter man who only accepted by force to take her in. But Heidi's kindness may be able to open his heart. Together with the shepherd Peter and invalid Clara, she has lots of adventures.

(Source: adapted from ANN)