Tetsuwan Atom

Both are early, early pioneers of English anime adaptions. While they certainly haven't aged well by any means, they're an important part of Anime history. 

Vintage black and white anime about a "boy hero", a young man with supernatatural powers and non-human circumsatnces (being a robot/being brought up by aliens). He acts as a sort of superhero in mostly episodical storyline. 

Very old vintage anime, still in just black and white. Both are about episodical adventures of a young boy hero with superhuman powers. 

Very old vintage black and white anime about a non-human boy in human society in which he acts as a hero with superhuman powers. Both series are mostly episodical.