Everyone loves a clear television picture in high-def. The increased pixel count makes it so and eventually all TV broadcast will be in high-def. For the highest resolution of clarity in television viewing, high-def offers double the pixels of regular analog TV. The nation's leading satellite broadcast company, DirecTV, for instance, offers 130 high-def channels. Pixel ratios for standard definition television receiver is 480 scanning lines (704 x 480) stacked top to bottom. The resolution of a fixed-pixel display is defined by the total number of horizontal pixels across each scanning line. Here we have 704 pixels for each scanning line. With 1080i foreseen as the future broadcasting standard, you can expect the interlaced format alternative for HD taking hold. Naturally you'll need a plasma, LCD or DLP that has the capacity for showing those extra pixels. 1080i is the shorthand name of a format. 1080p resolution--which equates to 1,920x1,080 pixels. The letter i stands for interlaced. The "i" is opposed by another nomenclature "p". The alternate format of high-definition video mode, known as 720p, the p would stand for progressive scan. HD resolution is in either 1080i or 720p. It's either broadcast as 720 lines (1,280 x 720 pixels) progressively scanned with a widescreen 16:9 aspect ratio or it is broadcast as a "1080i" (1920 x 1080 picture) in a 16:9 widescreen image with 1920 pixels across. With 1080i, you do see all 1080 lines at once due to residual light imprinting on your eye. It is much sharper when the image is still. With 720p the motion is smoother and better for viewing faster action situations like animals on the run or sports. HD DVR recorders allow you to record HD broadcasts and replay them later. Direct TV offers a free HD DVR that lets you record 50 hours of high-def or up to 200 hours of standard digital broadcast television. You can even watch one show while recording another.
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