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High Definition television, or HDTV, gives viewers crystal-clear pictures integrated with Dolby® Digital 5.1 channel surround sound - the entertainment experience that has been imagined but was never possible on standard analog televisions. HDTV reproduces theater-quality sights and sound by digitizing TV programming, allowing it to be transmitted and received the same way that a DVD player can reproduce movies with big-screen quality effects.
What is HDTV?
HDTV provides high resolution widescreen High Definition programming, integrated with Dolby® Digital 5.1 channel surround sound that makes your television viewing experience come to life. Live life in high definition.
All-digital HD broadcasts transmit as many as 10 times more pixels, or picture frames, than you are used to seeing on a standard broadcast television, resulting in sharper, more lifelike colors and richer sounds.
HD programs are broadcast in widescreen (16:9) format. Unlike standard (4:3) format, which causes some images to appear squeezed in the middle or cut off along the sides of the screen, widescreen HD broadcasts reproduce screen images as they were originally meant to be seen.
HDTVs use a method of scanning called "progressive" scan to produce a flicker-free image, making text easier to read and fast-motion video appear smoother than televisions that use interlaced scanning. Interlaced scanning refreshes pixels in alternations - first the odd lines, then the even lines - showing only 1/2 of the screens picture elements at any given moment. Progressive scan means that all 1 million pixels on the screen are refreshed simultaneously. <P class=MsoNormal style="MARGIN: 0in 54.05pt 0pt 1in; mso-element: frame; mso-element-frame-hspace: 2.25pt; mso-element-wra | 
