HDTV: Just the Facts, Please
No single technology has created more excitement in the home entertainment industry in recent years than High Definition Television (HDTV). These televisions dazzle with their crystal-clear pictures and amazing digital features; however, questions and confusion over HDTV linger. In this article, we review the most common questions and concerns about HDTV.
What exactly is HDTV?
HDTV is a format of Digital Television (DTV). DTV is the umbrella term under which HDTV (High Definition TV) and SDTV (Standard Definition TV) exist. HDTV sets are digital televisions that feature high-resolution display capabilities to create the highest quality visual entertainment available. HDTV sets present 720 to 1080 lines of resolution compared with just 525 lines presented on a regular television set. The higher resolution allows for a level of image clarity that is not possible on standard (analog) television sets.
All HDTVs are widescreen in format; the same shape as film. When movies are displayed on an HDTV, they fit the entire surface area of the screen and do not need to be stretched or put into letterbox format, as is common on standard televisions.
What do I view on an HDTV?
You can watch any incoming signal on your HDTV, but the only way to get the true HDTV experience is to watch HDTV broadcasts. These broadcasts are delivered on a different bandwidth from regular television transmissions (your local cable or satellite company can provide you with an up-to-date local schedule.) It’s important to note that, as of right now, HDTV programming is somewhat limited. Generally, the four major networks (ABC, NBC, CBS and FOX) restrict their HDTV programming to primetime (evening) programs. However, more programs are being broadcast in HDTV every day.
So I’ve got an HDTV…
Does that mean I’m automatically getting HDTV broadcasts? In short, no. You need both an HDTV monitor (your TV) and an HDTV tuner to properly decode and display the broadcasts. Many HDTVs come with built-in tuners. Still, it usually requires the help of a professional like your local HTSA member to properly install the television and make sure it is working with your cable or satellite system.
If your HDTV does not have a built-in tuner, you can purchase an out-board tuner. Or, you can get a tuner through your cable or satellite company as part of their HDTV packages. A standard cable box or satellite tuner does not receive HDTV broadcasts — you have to order an HD-ready cable box or HDTV satellite receiver. Still another option is to receive free over-the-air broadcasts from local networks by hooking up an antenna to your system.
Get the most from your HDTV experience. Visit your local HTSA member, the experts on selecting and installing HDTV.
source:http://www.livearticles.org