The first major public domain video-sharing project in Japan, by Research Institute of Digital Media and Contents, Keio University (Keio DMC), in collaboration with Kawasaki City Museum, is now open to public.
The site, "History of Showa, reflected upon Japanese dinner table", is a neat collection from the long-standing animated commercial series by a processed food company Momoya, broad-casted on television between 1953 and 1993. The main character, a big-nose guy with round glasses, is Miki Norihei, one of the great comedians in Showa-era. Momoya contributed its entire CM video archive, 218 pieces (until 2008, more than 300 pieces have been made) in total, to Kawasaki City Museum to be used for the purpose of study and education. For foreign visitors, the site has a separate page to explain the food items in subject, as well as some of Japanese-specific CM characters that Norihei impersonates, such as sumo wrestler and ninja.
Please visit: http://www.documentshowa.jp/
Anyway, the videos are quite fun to watch, and you can see the early days of Japanese anime. Enjoy!!