1) You will not actually "have" HDTV unless you are receiving it from either your Cable TV provider, your Satellite provider, over the air via antenna, Blu Ray or HD DVD player. Not all Cable or Satellite boxes output HD to your TV. Check with your provider!
2) Use the right cable to get the HD signal to your TV. S-Video and Composite video do not support HD. You must use Component video, HDMI or DVI for HD. It is often a good idea to use an analog Component video connection along with a digital DVI/HDMI connection in case the digital connection fails due to HDCP incompatibility or other issues.
3) Check the settings for the output of your cable box, satellite box, ATSC tuner, HD DVDplayerorBlu Ray player. HD is either 720p, 1080i or 1080p. 480p and 480i are not HD!
4) Do you have a home theater system? Does it have a digital audio input? If so, you should make sure to use a SPDIF RCA cable or Toslink optical cable from the Cable or Satellite TV box to the Surround sound Receiver. Make sure to set up the Receiver to use the digital audio from the input you connect to. It is a good idea to also run analog audio cables to the receiver as well, in case some stations do not put out a digital signal, or the digital connection fails. For the new, high resolution audio formats, please see the audio connections section.
5) You won't be actually viewing HD unless you actually tune to an HD channel! Your Cable or Satellite Box only will have a limited number of actual HD channels. With a DVD, HD DVD or BluRay player - you will notbe seeing real High Definition Video coming from a DVD Disc. "Upconverted" is not high definition, it is standard definition that is upconverted.
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