Key terminology for your AT&T U-verse TV:
- Aspect ratio: The relationship of your TV screen’s width to its height. For example, a standard TV size of 4:3 means 4 inches of width for every 3 inches of height. The most common aspect ratio of today’s TVs is 16:9.
- HDTV: High-Definition television is the newest standard when it comes to television viewing. HD TV showcases programming and content filmed in High Definition; almost every program in prime-time on ABC, CBS, and NBC is in HD. HD TV offers spectacularly beautiful picture quality and sound, creating a theater-like experience in your home.
- Pixel: Commonly referred to as picture element, pixels are tiny dots that convey light and combine to form a video picture on your TV.
- Resolution: The number of vertical pixels viewable onscreen. The higher the better for picture definition. (HDTV can contain 720 or 1080 vertical pixels; standard is 480.)
- TV programs: AT&T U-verse TV programming is delivered to your home as streams of data that allow viewing or recording of up to four programs simultaneously.
- TV signal: A standard TV signal is comprised of 486 visible lines, while a High-Definition signal is comprised of up to 1080 visible lines. While simple math would indicate that an HD signal is slightly more than twice as sharp, due to the way the eye perceives the amount of lines, an HD signal actually results in a picture up to 6 times sharper than the same image sent with a standard definition signal.
