Ambassador Magma (Maguma Taishi) is the title superhero of both a manga and a tokusatsu TV series created by famous mangaka Osamu Tezuka. In the U.S., it was known as The Space Giants. 

The TV series, produced by P-Productions, aired on Fuji TV from July 4, 1966 (The Beatles had performed in Tokyo that exact same night) to September 25, 1967, with a total of 52 episodes. It is the first color tokusatsu TV series in Japan, beating Ultraman to the airwaves by 6 days.

These high quality .AVI files represent episodes 1 through 13 of The Space Giants.  More info on this series is available at The-Space-Giants Yahoo! Group: 
 
http://tv.groups.yahoo.com/group/The-Space-Giants/