What Is HDTV And Why Is It Important To Consider Switching Soon?

What is HDTV?  According to Wikipedia, “High-Definition television (HDTV) refers to the broadcasting of television signals with a higher resolution than traditional formats (NTSC, SECAM, PAL) allow. Except for early analog formats in Europe and Japan, HDTV is broadcast digitally, and therefore its introduction sometimes coincides with the introduction of digital television (DTV): this technology was first introduced in the USA during the 1990s, by the Digital HDTV Grand Alliance (grouping together AT&T, General Instrument, MIT, Philips, Sarnoff, Thomson, and Zenith)  HDTV is defined as 1080 active interlaced lines, or 720 progressive lines. 16 : 9 aspect ratio in ITU-R BT.709. The term ‘high-definition’ can refer to the resolution specifications themselves, or to media capable of similar sharpness such as movie film.”  Why is it important to consider switching soon? If you’re the owner of one of the 80 million non-cable, non-digital TV sets in the U.S., you’re running out of time as Congress has now passed legislation requiring all conventional “analog” TV broadcasting to stop on February 17, 2009.

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