Is it possible to mount the TV on the wall, yet still have all the wires concealled behind the wall? Is that a lot of work? Personally, I can not 'tahan' wires all over the place, or even seeing one single wire showing.

I am thinking of having a simple 'floating' tv cabinet with wall mount tv but can't imagine seeing all those wires from dvd player, sound system, etc entering the back of the cabinet into the wall. Those wires are still visible if you are sitting in front of the tv. I guess the only solution is having sliding door to close them up?