So you've just bought a new TV. Maybe it's a cheap one that you picked up at Aldi. Maybe you got a great deal on a really expensive one from your mate at the hi-fi shop. Either way, the second you set it up, there are a few small tweaks that you can do to make it look better than it already does. You can spend zero dollars on this or you can spend a few hundred, but the result that you get will be a noticeable improvement.