Kirin Ashita No Calendar (partially found anime; 1980)
From The Lost Media Wiki
Kirin Ashita No Calendar was an anime that aired on Mainichi Broadcasting System and TBS TV from January 1st, 1980 to October 6th, 1984 with a total of 1,306 episodes. Not much is known about the anime except for some of the production crew/cast and the intro, which is currently the only thing found.