Here’s relevant info on HDTVs that you can use to get your home equipped with the latest television technology without breaking your budget.

You’re dreaming of a gleaming flat-screen panel mounted to your living-room wall, filling your days and nights with crystal-clear TV shows, movies and sports. You set off to the local electronics store only to be confronted with numbers, acronyms and a range of products that make your head spin. It’s really not that complicated to understand.

What Is HDTV?
HDTV, or high-definition television, is a new type of broadcasting that delivers superior images and sound to your home. HDTV is digital, but not all digital TV is HDTV. For a signal to qualify as HDTV, it must have a resolution of at least 720i.

Resolution is a measurement of the number of lines in an image. For the last several decades, we’ve been watching SDTV, which has a vertical resolution of 480 lines. There are two ways of displaying the image on a television: interlaced, in which every other line is skipped as the picture is scanned from top to bottom (1, 3, 5, etc. on one pass and 2, 4, 6, etc. on the next pass) or progressive, where every line is scanned on each pass. The two standard definition resolutions are 480i (interlaced) and 480p (progressive). Get close enough to an older TV and you can see the space between the scan lines.

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