Well Duh?!,
Should we need the RUNDOWN here's a few specs.
With HDTV, you can play movies in their original widescreen format. The first High Definition Television hit the market in 1998.
For sports fans, and movie goers this was like tasting heaven.
We are use to watching what you call CRT or Cathode Ray Tube- display around 480 visible lines of pixels.
•Analog pictures are interlaced -- a CRT's electron gun paints only half the lines for each pass down the screen.
On some TVs, interlacing makes the picture flicker.
•Converting video to analog format lowers its quality.
U.S broadcasting is changing and looking for the next (GREEN Technology) and digital television (DTV) has paved the way. A digital signal transmits the information for video and sound as ones and zeros instead of as a wave. For over-the-air broadcasting, DTV will generally use the UHF portion of the radio spectrum with a 6 MHz bandwidth, just like analog TV signals do so seems simple enough huh?.
DTV has several advantages:
•The picture, even when displayed on a small TV, is better quality.
•A digital signal can support a higher resolution, so the picture will still look good when shown on a larger TV screen.
•The video can be progressive rather than interlaced -- the screen shows the entire picture for every frame instead of every other line of pixels.
•TV stations can broadcast several signals using the same bandwidth. This is called multicasting.
•If broadcasters choose to, they can include interactive content or additional information with the DTV signal.
•It can support high-definition (HDTV) broadcasts.
DTV also has one big disadvantage, Analog TVs can't decode and display digital signals. When analog broadcasting ends, you'll only be able to watch TV on your trusty old set if you have cable or satellite service transmitting analog signals or if you have a set-top digital converter.
This brings us to the first big misconception about HDTV. Some people believe that the United States is switching to HDTV -- that all they'll need for HDTV is a new TV and that they'll automatically have HDTV when analog service ends. Unfortunately, none of this is true.
HDTV is just one part of the DTV transition. HDTV is simply the highest of all the DTV standards. But whether you see a high-definition picture and hear the accompanying Dolby Digital® sound depends on two things. First, the station has to be broadcasting a high-definition signal. Second, you have to have the right equipment to receive and view it.
So I hope this starter rundown helps.
Should we need the RUNDOWN here's a few specs.
With HDTV, you can play movies in their original widescreen format. The first High Definition Television hit the market in 1998.
For sports fans, and movie goers this was like tasting heaven.
We are use to watching what you call CRT or Cathode Ray Tube- display around 480 visible lines of pixels.
•Analog pictures are interlaced -- a CRT's electron gun paints only half the lines for each pass down the screen.
On some TVs, interlacing makes the picture flicker.
•Converting video to analog format lowers its quality.
U.S broadcasting is changing and looking for the next (GREEN Technology) and digital television (DTV) has paved the way. A digital signal transmits the information for video and sound as ones and zeros instead of as a wave. For over-the-air broadcasting, DTV will generally use the UHF portion of the radio spectrum with a 6 MHz bandwidth, just like analog TV signals do so seems simple enough huh?.
DTV has several advantages:
•The picture, even when displayed on a small TV, is better quality.
•A digital signal can support a higher resolution, so the picture will still look good when shown on a larger TV screen.
•The video can be progressive rather than interlaced -- the screen shows the entire picture for every frame instead of every other line of pixels.
•TV stations can broadcast several signals using the same bandwidth. This is called multicasting.
•If broadcasters choose to, they can include interactive content or additional information with the DTV signal.
•It can support high-definition (HDTV) broadcasts.
DTV also has one big disadvantage, Analog TVs can't decode and display digital signals. When analog broadcasting ends, you'll only be able to watch TV on your trusty old set if you have cable or satellite service transmitting analog signals or if you have a set-top digital converter.
This brings us to the first big misconception about HDTV. Some people believe that the United States is switching to HDTV -- that all they'll need for HDTV is a new TV and that they'll automatically have HDTV when analog service ends. Unfortunately, none of this is true.
HDTV is just one part of the DTV transition. HDTV is simply the highest of all the DTV standards. But whether you see a high-definition picture and hear the accompanying Dolby Digital® sound depends on two things. First, the station has to be broadcasting a high-definition signal. Second, you have to have the right equipment to receive and view it.
So I hope this starter rundown helps.