Since this thread has been posted in the General Forum not the TNG forum I'll post something about TOS. You know how people's cabin doors open in TO when you just go near them like at the shopping centre, how come they didn't just open when people just walked down the corridors? I mean how did the doors know when you wanted to go in or when you were walking by. Or did they actually press buttons to go in - I can't remember this being the case.
I'm trying to think of this situation in say VOY but the camera angle in VOY always seemed to be from inside the cabin not from the corridor.