Instant History/Otogi Manga Calendar (lost anime series; 1961-1964)
Instant History is a Japanese anime series produced by Otogi Production that aired from 1961 to 1964 on Fuji Television, then later on TBS. The series focused on characters learning about historical events that happened on that particular day. It often featured photographs and film footage taken from the Mainichi Shimbun newspaper.
It was the first anime series ever broadcast on Japanese television predating Astro Boy by two years. The series was split into two seasons. The first season, Instant History, aired on Fuji Television from May 1, 1961, to February 24, 1962, for 312 episodes. The second season, "Otogi Manga Calendar", aired on TBS from June 25, 1962, to July 4, 1964, for 312 episodes.
The series never received a home media release, and footage is consequently very rare. It's highly unlikely that any episodes were recorded, as the technology for that at the time was limited, expensive, and bulky. In fact, it's possible the master tapes themselves were destroyed or taped over.