Amazon Prime Video's Filmbox Live Service Streams 1974 Heidi in U.S. in Spanish
Filmbox describes the story: The anime debuted in Japan in 1974. A movie, featuring scenes from the series, opened in 1979. The series aired in various countries worldwide, but not the U.S.The anime got new web anime shorts titled Alps no Rōjin Heidi no Ojii-san (Heidi's Elderly Grandfather of the Alps) on December 18. In the anime, Heidi's grandfather Alm-Onji is the protagonist as he and Heidi act like a comedy duo and talk in a Kansai dialect.The anime previously inspired a short spinoff parody anime of Alm-Onji. The Alps no Shōjo Heidi? Cyara-Onji anime debuted in August 2016. The series replaces the taciturn Alm-Onji with the cheerful and flashy "Cyara-Onji" and follow his misadventures. Clara, Peter, and Josef (the dog) respectively become "Sweets Clara," "Kira Kira Peter," and "Hard-boiled Josef."Source: Amazon Prime Video
