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The bathroom had originally been done just before we bought the house, however we weren't keen on the shower so the opportunity came to replace with a showerbath instead. I had an idea I would attempt an in-wall TV and knew access was important. I didn't want front access due to waterproofing the enclosure so rear access was needed. There's a spare bedroom to the left of the room and a stairwell to the right, and the location in the spare bedroom wall is where a wardrobe will eventually be, so that gave me the answer of installing it in the lefthand wall. I then measured up to check that there were no electrics or anything else in that part of the wall that would hinder the install.
The new bathroom and plumbing took about 4 solid days to install and on day 4 I sat in the bath with a hammer and chisel and calculated the work needed to break through into the wall. Now very luckily the LCD monitor I had bought was exactly 20mm shorter all round than two of the existing tiles, so I had to very carefully chip away at the tiles making sure that I didn't damage the neighboring ones. It took a very nerve racking 60 minutes and finally I got through.
In the neighboring bedroom I had drilled some holes from the bathroom that gave me locating points for where the monitor was exactly going to sit. As I knew I needed to cut through some studs I also marked out the size of hole needed to get across to the next whole studs for support.
Now I could properly access the studs that needed to be cut through, so they were marked with a spirit level and then cut.
Then I built a frame to support the studs I had cut and to also create an enclosure for the monitor. The two cables are power and VGA from the attic above. The VGA is a clone output of the bedroom Media Center PC, and the power is from an intelliplug that brings the monitor on with the PC, so PC on = monitor on.
Lastly was to mount the monitor in place, support with a simple wooden crossbar, and create a surround for the larger hole out of MDF. The monitor has another smaller access panel to cover it and eventually when this guest bedroom is decorated a it will all be painted over and a built-in wardrobe will mask this panel.
To make the screen's enclosure watertight I ordered a piece of 7mm laminated and toughened glass to exactly fit the hole in the tiles. The back edge was painted with black glass paint so to mask the edges of the monitor and silicone.
Then after plenty of silicone on the inside to hold the glass in place, and a bead on the outside to finish it off, it was complete. The screen is running at 1280x800, so just a bit more than 720p HD.
At this point there was only 2 more jobs to complete, IR control and sound...
Due to the limitation of ceiling space, I went for a single stereo speaker; a Monitor Audio C165-T2.
The speaker is powered from a Cambridge Audio amp in the attic. Volume is set to 80% and further control is not needed as the master volume level is controlled via the PC output level in Media Center.
The amp input is split from the feed to the bedroom speakers and the power to it is via a pull-ceiling switch just inside the door.
Lastly, for IR control I looked at many makes and models for a discrete receiver/repeater, however they all quite expensive, so I took a standard USB Microsoft IR receiver, took its casing off and placed it with the IR eye pointing through the showerfan ducting directly above the bath. The Media Center is now controlled via either the standard remote in the bathroom or the Gyration one in the bedroom.
So with the TV, ceiling speaker and IR receiver in place, the finished system is quite discrete. In the months since completeing this install I've had no issues with the screen behind the glass; there's no sign of any condensation or reduction in screen quality over a period in the bath. With the shower running after a few minutes, the front gets steamy needing a wipe away with the hand if you want to see what's going on. And as for the remote control, I've dropped it under the shower several times but thankfully it's still working.
