Has any group of fans been so excited or waited so long to see corridors before?*
*Yes, I am aware that corridors were briefly shown in the 1968 episode "Hat of the Daleks", but that was only through a dimensional mirror and in real life it was really just a painting rather than a fully built set.
Well, really, mostly, it's only been in the new series that we've had a hankering for corridors. I mean sure, for most of Hartnell and Troughton's run we were just in the console room, but the console room always seemed to contain exactly what we needed in it at any point (it gains a small room with bizarre 60's beds at one point, because the stroy needed it). We didn't really see it that much with Pertwee because it wasn't working a lot of the time, but still there appeared a slide out bed if the story needed it.
But we got the first big look inside with Tom Baker and, frankly, it was really naff. As in as soon as you left the console room it looked like a dingy old hospital. As in it was filmed in a in dingy old hospital. But at least we saw the swimming pool.
Peter Davison got it best, though. He had TARDIS corridors going on forever, corridors that actually looked like part of the TARDIS. We even got to see companion's rooms with props from old episodes and everything.
After that we saw less and less of the inside of the TARDIS as the console prop got more and more battered, except of course for the Paul McGann TV movie where we got the best TARDIS ever.
But really in the new series it's just because we've
never seen where they go when they're not by the console. I'm not sure 9/10's TARDIS even
had a door to the rest of the ship, which is why it's so good to finally see TARDIS corridors.
That's a really long post about TARDIS corridors.