Apparently, there is a prototype version of the original Zelda located here: http://forums.lostlevels.org/viewtopic.php?t=2471
I don't get it. So the Pols Voice looks different, the game got a bit harder afterwards, and a cheap gameplay mechanic in the form of walk-through-walls in the last dungeon on the first quest was eliminated. Is that really all that's different? I guess it's an interesting insight to the development of a classic game from the 80s, but, I was expecting something more, I guess. Oh well.
The Oot beta did look quite promising, with regards to the different set-up of the areas in the game and, possibly, added material, but the graphics didn't really fit the revolution that would become Oot. Don't forget, it was the first game to include an almost completely 3D environment.
I hope this is some kind of inside joke or something. Mega Man Legends featured less pre-rendered graphics than Ocarina Of Time did, as well as a lock-on targeting system and 3d environments, and it was released a
year earlier. Not to mention all the other games with "almost completely 3d environments" that came out before Ocarina Of Time. The game was hardly a "revolution", and clearly you're exaggerating quite a bit in order to come to the conclusion that it was the "first game" to do anything innovative in particular.
It's funny, because that video actually looks a lot better than Ocarina Of Time does in some areas, especially the mountain area and those Zols. ESPECIALLY those Zols! Wow! Why weren't they in the final game?