Ok, so. We all know one exists, we all know it's out there somewhere, but it's harder to find than the Holy Grail.
I am of course talking about the Japanese dub of A:TLA (and Korra). I know it might be weird and very weeaboo-ish to be looking for a Japanese dub on an American "anime-inspired" cartoon, but if I know the internet, then there's gotta to be a Avatar Japanese dub somewhere, even half an episode. The reason why I ask is because of the video Ilnked above where Sokka says "Damn". That shocked me the first time hearing it, not because it's that bad a word but the fact that it came from a very kid friendly show about genocide and war.
So it lit my curiousity on what else did the Japanese dub add to the original English one.
Hell, even Japanese natives have a hard time looking for the dub.
So I think it's fun attept at trying to find the dub for this show and see what the magical kingdom of Japan has added to the show. (Also Korra too which is also hard to find.)