How to Tweak or Calibrate Your HDTV

Most TVs sold today are flat panel screens capable of producing gorgeous high definition pictures. Many consumers, however, think they are watching in HD when they are not because of incorrect wiring, watching a non-HD channel, or other error. But, assuming your TV is properly wired and you are watching an HD program on an HD channel, is your picture the best it can be? Here are tips on tweaking your TV to improve the picture.