Mine was designed around "hiding" the MoviePoster TV on a wall with several other standard posters. I'm sorry I didn't document the MP install that well, but here's what I can find:
I started by just cuting out the framing and the wall, making a pass-through about 2" larger all around than the TV. I framed it in, put a dedicated power outlet inside, and ran Cat 5e (for control) and HDMI (to pass the output from my HTPC, which controlls the MP app). After that, I put a piece of plywood over the back of the box, with drywall screws holding it in place so I could remove it later. This is the best picture I have left, but if you removed the screws, you'd see the TV just sitting in a box made of the 2x6s from framing.
When I sheetrocked the inside, I just came flush up to the plywood, since none of it would be visible when the room was done.
From the outside, you can see a couple of the other pictures with it. I made all of the frames myself, and made one for the MP TV to match. Inside of its frame I cut some standard poster matting to the opening of the picture. The TV itself is just sitting inside the 2x6 frame, with a couple of shims to bring it to an even height with the black frame, and only a single long screw up top center, into the 2x6, to keep it from moving.
Nothing too crazy with my implementation. The whole line of posters outside was done to give everyone in the family a poster of their own, with the MP TV showing off right in front of the theater entrance. Sorry I don't have any pictures of the inside, but let me know if there's any more info that I can give you.