HD TV stands for high definition television. It is a digital television broadcasting system and has a higher resolution than traditional television systems.
The direct benefit is a very sharp picture quality which requires a higher bandwidth than traditional content broadcasting. Sharp images are entitled to the higher compression rate MPEG 4 whereas for standard definition content the compression rate needed is MPEG 2.
HD Ready television uses the latest technology to bring clearer and sharper television pictures and has a resolution of 1280x720p.
High definition broadcasts can be transmitted through a 16:9 widescreen HD Ready television.
A full high-definition widescreen has a resolution of 1920x1080p.
1080p can be referred to as Full HD or full high definition in order to differentiate it from other HD TV video modes.