Ooh! I had almost forgotten about that one. It is absolutely adorable. I can't help but think of it as an alpha version of My Neighbor Totoro. Really, anything Isao Takahata and Hayao Miyazaki have worked on is pretty good, and it goes back way before they established Studio Ghibli.
It's funny, when I worked my way up to the 70s I was really excited to see the evolution of the mecha genre (because giant robots are awesome) but I found the super robot genre to be a total wasteland of reppetative battles and little in the way of story telling. Then I came across Flanders no Inu, an unassuming show about a poor boy growing up Belgium, and I was utterly enthralled. It's really all because the animation was rendered so lovingly that even the most mundane scenes were a joy to watch. The 70s can keep Go Nagai, I'll take the proto-Ghibli goodness instead. =D
And I have seen a couple of episodes of Gatchaman. I thought it was pretty good, and much better than the sentai and combining robot shows it inspired. I really think that Tatsunoko productions had it going on during this erra. Though I haven't watched any of their series to completion I am always impressed by their graphic design. Everything they did looked so polished, and in the case of their sci-fi shounen titles, very sleek and futeristic. Other sci-fi anime of the time looked so clunky by comparrison. They also had some solid original concepts, so I can see why they are so beloved by the old school fans.
AspieOtaku sorry for hijacking your thread.