Was anyone else as a kid unable to understand...
...the fact that Fraggles could go down one tunnel and end up in Doc's House and then go to another tunnel and end up in a fantasy land with the Gorgs? I didn't grasp the sci-fi/concept of interdimensional portals or worlds living side by side (or at least them being so close and not crossover - unless did the Gorgs ever meet Doc?). No wonder I didn't read The Lion The Witch & The Wardrobe until I was in my teens. lol
Then a few years later I saw Dr Who with his TARDIS which was bigger on the inside than the outside and that just BLEW my mind. Took me several episodes just to grasp that concept too. hehe