There are televisions on the market that allow you to connect all of your components, and connect to the internet, wirelessly. The televisions come equipped with built in high definition wireless network cards, and wireless HDMI adapters.
Imagine a television that can connect to any high definition video source without any wires. Literally, you just plug the television into the wall, and turn it on. High definition televisions have accomplished the ultimate aesthetic goal...turning your television into a work of technological art hanging on your wall.
The only downside is the cost. The televisions that offer these features are very big, and some of the most expensive. You will however, save money on installation expenses. You will not have to hire anyone to hide wiring in the walls, or to make complicated audio/visual connections.