What is HDTV?
HDTV is an acronym for High Definition Television. HDTV is the new standard in technology in a digital television format, delivering theater-quality pictures and CD-quality sound.
HDTV signals are transmitted in the form of data bits. Because these data bits are transmitted with parity checking and error correcting ability, the picture is always perfect - as long as you can receive the data stream you will get the best picture without ghosting, noise, sparkles or static.
HDTV provides high resolution programming. A current analog TV picture is made up of horizontal lines on the picture screen; an HDTV picture can have more than twice as many lines, allowing for stunning picture detail.
HDTV uses a widescreen format, which refers to an image's aspect ratio - a comparison of screen width to screen height. Analog television has an aspect ratio of 4 by 3, which means the screen is 4 units wide by 3 units high. The aspect ratio of HDTV is 16 by 9, similar to a movie theater screen. HDTV programs can include Dolby Digital surround sound, the same digital sound system used in many movie theaters and DVDs.
Information from the Federal Communications Commission (FCC) at dtv.gov. Click HERE for more information.