Most landlords won't let you drill holes in the wall so you can mount your TV. Wired's solution? Just build a fake wall.
The idea here is that you're going to essentially build an entire wall over a wall in your apartment. So, you'll make a foundation with extra layers of plasterboard, and make it look exactly like the existing wall in your apartment. Then, you'll go ahead and drill a hole to hide wires, mount the fake wall to your real wall, and mount the TV just as you would if you owned the place.
While this is a clever notion, it does have some downsides: you'll reduce the available space slightly and your landlord is still likely to complain when there's an inspection if you haven't asked (either because you've added a wall or because they assume you've drilled holes without asking). Property alterations when renting are always a challenge. If you can talk your landlord into this idea, head over to Wired for the full guide.