The original series of Pocket Monsters in Japanese was awesome!
As soon as I started to watch the original version of Pokémon, in Japanese with English subs, I regret not have done years ago because it's so much better than any foreign dub that was done.
It's a pity there's no official DVD-sub release of it, well, since we got Blu-ray format now maybe Nintendo will release the series in HD/1080i (seen that most anime is in 1080i not 1080p, would be better in 1080p).