So you've had the conversation about what devices will need to be hooked up to the television — but where are you going to put them? If you don't want them out in the open, the two most common solutions are to place them in a nearby closet or in a piece of furniture.
Furniture is convenient because you can put it as close to the TV as you want, but remember that you'll need to drill holes in the back, bottom or top to accommodate multiple wires. If you want to keep the doors closed and still use remote controls, you'll need to purchase a signal repeater. And these devices generate a lot of heat, so you'll need to provide enough room for airflow.
If you put everything in a closet, ventilation is not as much of an issue, but you'll need to find a way to route the wires there, and you'll also need a signal repeater.