HDTV
| High Definition Television, or HDTV. HDTV is high-resolution Digital television (DTV) combined with Dolby Digital surround sound (AC-3). HDTV is the highest DTV resolution in the new set of standards. This combination creates a stunning image with stunning sound. The higher resolution picture is the main selling point for HDTV. Imagine 720 or 1080 lines of resolution compared to the 525 lines you are used to in the U.S. (or the 625 lines in Europe) — it’s a huge difference! The formats used in HDTV:
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HOW IS HDTV DIFFERENT……..
Digital TV has:
- Wider Images
- More Detailed Pictures
- 5.1 channel CD-quality Dolby Digital (AC-3) surround sound
- The ability to send data directly to a screen or to a PC as a download. The actual HDTV transmission is based on a 19.3-Mbps digital data stream.
The aspect ratio (width to height) of digital TV is closer to the ratios used in theatrical movies. Currently broadcasters must either pan and scan the image (crop the full picture of the film down, eliminating part of every scene in the process) or letterbox it (present the full picture only on the middle part of the screen, with black bars above and below it). With a 16:9 screen, panning and scanning a theatrical movie doesn’t remove so much from the original picture and letterboxing doesn’t block out so much of your screen.
WHAT Do I NEED TO BUY………..
Today’s HDTV sets come in two forms. HD-ready sets have the HDTV receiver/decoder built-in, while HD-capable sets require the addition of an external receiver/decoder needed to receive digital broadcasts. In an HD-capable set, the TV is essentially a monitor.
Contact CASZONE to find out more about HDTV and which installation is best for you.