What is High Definition Television?
Wednesday - October 31, 2007
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Oceanic Time Warner Cable
Q: What is HDTV?
A: HDTV stands for high-definition television, with the emphasis on high definition. Currently your television is receiving an analog signal. In analog TV, a 6 MHz signal produces 500 horizontal pixels (dots). These pixels comprise the picture you see on your screen. HDTV can have a resolution of up to 1920 by 1080 pixels, or more than two million pixels. That’s more than six times the detail of regular television.
Q: How do I get HDTV?
A: Once you have a high-definition television, you can access HDTV programming by calling Oceanic Time Warner Cable at 643-2337 or by going online to upgrade your cable set-top box to an HD-enabled set-top box.
Q: Is there really a noticeable difference between HDTV and regular TV?
A: Yes. HDTV is the ultimate home entertainment experience. HDTV allows you to experience more of the TV picture with a wider viewing area, life-like picture quality, and the depth and clarity of true Dolby surround sound. It’s like having a movie theater experience in your home.
Digital Cable is a type of television signal. HDTV is the highest quality in digital signals, offering better resolution and sound than a standard digital signal. Digital Cable can be watched on your existing standard television if you have one of our digital set-top boxes. Digital Cable can also be watched in high-definition if you have an HDTV television and you have an HD-compatible digital set-top box.
Q: What is aspect ratio?
A: An aspect ratio is the ratio of the width to the height of the TV screen. The aspect ratios differ because the television industry manufactures both standard-screen and wide-screen HDTV’s to appeal to consumer viewing preferences.
A standard screen HDTV has a 4:3 aspect ratio. The screen is 4 units wide for every 3 units tall. A wide-screen HDTV is one-third wider than a standard-screen HDTV. The screen is 16 units wide for every 9 units tall.
Q: What is screen resolution?
A: The screen resolution indicates the amount of detail that the picture displays. Resolution is identified by the number of display lines on the screen. The techniques that an HDTV uses to “paint” the picture on the screen are referred to as progressive and interlaced.
For example, a resolution of 1080i indicates that the screen shows 1080 lines in an interlaced display, and 480p means that the screen shows 480 lines in a progressive display.
With the progressive method (top photo), every pixel on the screen is refreshed simultaneously, whereby the interlaced method (bottom photo) involves refreshing pixels in alternation - first the odd lines and then the even lines.
Q: What does it take to launch HDTV in my house?
A: You need three things: a High Definition Television, an HDTV-compatible cable box and to be a Oceanic Time Warner Cable subscriber.
HDTV sets are available at major electronics retailers. “High Definition Television Monitors” do not come with a HD tuner, but that’s OK because the Time Warner Cable HD-enabled box comes with one built in.
Time Warner Cable customers with an HDTV but no HD converter can pick up an HD-enabled converter box at any of our Cable Store locations, just call or go online to set up an appointment.
For more inforation on HDtv’s or HD programming, visit ocean-ic.com, click on television, then clcik on HDTV.
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