Tokyo Movie Shinisha produced the series for MGM in the US...a natural for giant robo anime stories.

The individual Orbots robots were humorous (Bo, Boo, Torg, Bort, and Crunch) and had interesting personalities...although when they joined together into one robot...the gestalt (little pieces becoming one big piece) robot didn't exhibit much of a personality of its own.

Gary Owens was the narrator although his speaking tone seemed too comical when th action got serious on screen...it didn't fit too well. If Owens spoke like his Space Ghost character...maybe that would have helped.