I have watched this show for years, each time learning something from this absolute masterpiece. Everything comes back and has resolution. All but maybe 2 early episodes have characters that don't come back around before the end of the show. Every character, every theme, every musical cue evolves and matures over the 61 episodes of this series. There has never been, and likely will never be, another show like Avatar. It manages to captivate me every time I watch it, without fail. In conclusion, watch Avatar: The Last Airbender