Four Eyes (partially found japanese live-action science series; 1966-1972)

Four Eyes (四つの目) is a science-theme japanese program for elementary school students that aired on NHK General TV From March 23, 1966 until March 30, 1972 with a total of 281 episodes and until March 23, 1970 it was broadcast in black and white, from April 2, 1970 it was broadcast in color Out of the 281 Episodes Produced only 52 episodes are known to survive https://www2.nhk.or.jp/archives/tv60bin/detail/index.cgi?das_id=D0009010121_00000 https://www.nhk.or.jp/archives/hakkutsu/news/detail308.html https://www.nhk.or.jp/archives/hakkutsu/news/detail297.html the former of which was released on DVD https://www.nhk-ep.com/products/detail/h08040AA-00-00-h08037AA to read more info go to the japanese wikipedia page of this show https://ja.wikipedia.org/wiki/四つの目