Hdtv

HDTV Wiki

FAQ
'''What is HDTV? What is the difference between HDTV and regular TV?'''
 * HDTV stands for high-definition television, a digital television broadcasting system with a significantly higher resolution than traditional formats (NTSC, SECAM, PAL)

What are the standard resolutions for HDTV
 * 1280×720 and 1920×1080 (only 16:9)

What does 720p, 1080i, 1080p etc. stand for?
 * Numbers before letters “p” or “i” mean hight of source video.
 * Letter “p” means “progressive”
 * Letter “i” means “interlaced”

What is the difference between “progressive” and “interlaced” video?
 * Interlace is a technique of improving the picture quality of a video transmission without consuming any extra bandwidth

What does “HD Ready” and “Full HD” mean?
 * “HD Ready” means that best source video resolution for device is 720p, 1080p will be playable, but it will be resized to 720p. Usually 32” screens and below are “HD Ready”
 * “HD Ready” can also mean that TV can receive and show hi-res HD Video, but screen can have resolution much lower than 720p.
 * “Full HD” means that best source video resolution for device is 1080p, so they support more detailed picture than “HD Ready”. Usually screen bigger than 32” support “Full HD”

Why do “HD Ready” screens have 1366×768 resolution?
 * It is because of manufacturing limitations.