I’ve seen the animated 70’s version of ‘Lord of the Rings’ but not ‘The Hobbit’. My dad was lucky enough to see the animated ‘Lord of the Rings’ film at the cinema when it came out originally but that was through a film club that he was part of at school at the time. He had also seen ‘Jaws’ by the same means. I like the animated ‘Lord of the Rings’ film for what it tried to achieve at the time.
Fun fact; Tim Burton had worked as a background animated (but uncredited) on the animated ‘Lord of the Rings’ film.