hello tomorrow

i went to filmLA today and they had these elevators unlike any i had ever seen before. after passing through security and acquiring your identification badge you have to walk across the filming lot (mad men?) into a different building. you have to tell the next security where you're going and they assign you to a specific elevator "go to C" that they have programmed from their desk, via computer, to take you to your destination floor, because inside the elevator, there are no buttons.