Hello.
I was re-watching a lot of LOTHT episodes the other day, and was truly stumped as to why the right door leading from the Shrine to the Forest/Golden Doors never opened (well, except once, by mistake...).
It wasn't un-common for there to be multiple passageways to get from one room to the other. The Ledges and the Pit had two, the Swamp to the Golden Doors had two, and the Swamp up to the Green Door/Treasure Room had three ( we see those side doors open in a few episodes, and while I can't remember which episodes specifically, it told us that those doors were "active").
The only door that never opened in 119 episodes was that right Shrine/Golden Doors passage. Here is what we know:
1) There are three doors from the Golden Doors that, by just looking at an image, appear to go up. The one on the left was the one that would connect that space with the Shrine, the Center door lead to the back of the temple, and was used to hold temple guards in Season 1, and the right door, was, well, a passage that as we all know was never used.
2) That passage was originally intended to be used, as you can see it from the Shine, but it never opens after the artifact is acquired.
However upon review of the episodes, there was one early Season 1 production error in which that door does open, it was during The Keys to the Alhambra and while there isn't clear and convincing evidence, I'm about 90% it opened. Here is why. If you re-watch that episode, you will see that the moment the Temple Guard jumps out, all of the doors (with the exception of the rock wall) instantly open. Also notice how those fake doors that lead in the direction of the Swamp don't open, while the right Shrine door does. This proves that our "Unused Door" was a real passageway. My thought is that the moment the Temple Guard jumps out, a production error unlocks all the doors in that room. So when Lisa, the trail runner, attempts to put in the key for the ALREADY UNLOCKED doors, no sound effect plays, as if this step had already been done. If Lisa had been a smart runner, she would have at least made it up to the Shrine using the passageway you are supposed to use, and then we would have closure, as we would be able to see if the Shine door opened. But I'm almost positive they were both open by mistake. Of course the credits avoided the Shrine one this episode, would have provided us with the answer! Now we will never know...
Anyway, do you think this door opened during that episode, and, why was that passageway never used? I'm intrigued to hear your thoughts!