High-definition television (HDTV) provides a resolution that is substantially higher than that of standard-definition television.
HDTV may be transmitted in various formats:
|1080P||1920×1080p: 2,073,600 pixels (~2.1 megapixels [Mpx]) per frame|
|1080i||1920×1080i: 1,036,800 pixels (~1 Mpx) per field or 2,073,600 pixels (~2.1 Mpx) per frame|
|1440×1080i: 777,600 pixels (~0.8 Mpx) per field or 1,555,200 pixels (~1.6 Mpx) per frame|
|720P||1280×720p: 921,600 pixels (~0.9 Mpx) per frame|
The letter "p" here stands for progressive scan while "i" indicates interlaced.
When transmitted at two megapixels per frame, HDTV provides about five times as many pixels as SD (standard-definition television).
The WD TV is a consumer device produced by Western Digital that plays videos, images, and music from USB drives. It can play high-definition video through an HDMI port, and standard video through composite video cables. It can play most common video and audio formats.