Using digital conversion boxes on analog TVs is sometimes seen as a last resort – a poor person’s way to keep using their "old fashioned" analog TV sets. But, as described in "Save money with free Digital TV", broadcast digital television is just as good as cable or satellite TV – just with fewer channels. Plus, you get high definition for free (most cable and satellite services charge a premium for HD service). So switching to broadcast TV can save you hundreds of dollars a year.
If you've a high definition TV with a digital tuner, all you need is an antenna. If you're using a digital TV converter box, here’s a tip for improving your picture quality:
If you've a high definition TV with a digital tuner, all you need is an antenna. If you're using a digital TV converter box, here’s a tip for improving your picture quality:
Most converter boxes have two outputs – an RF output (which uses a coax cable that connects to your TV’s antenna input), and a audio/video (AV) output (with 3 connectors, 1 for video and 2 for audio).
If your TV has a video input, it'll always give you better quality than the antenna input. This is because using the antenna input adds two conversion steps that reduce video quality and add noise to the signal. Most converter boxes don't include the AV cable, but they are readily available online or at any store that sells electronics.
source: http://www.examiner.com/x-1652-Gadgets-Examiner~y2009m6d15-Get-the-best-possible-signal-from-your-DTV-converter-box
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