Once your new HDTV is set up and connected to your home theater, it might seem that you can just power up and watch your favorite shows. But not so fast. You'll first need to calibrate your set to get an optimal picture. And as for the sound, you'll need to make sure that your speakers are put in the proper place to ensure immersion in high-quality audio. These tips will walk you through those steps, so you can finally relax and enjoy all your HD content.