This technique was firstly established in the US of An at the time of the 1990s, by the Digital HDTV Grand Alliance. This is referred as 1080 active lines, 16 x 9 aspect ratio in ITU-R BT.709.

High defintion television refers to screen of widescreen images with higher detail and clarity than available in standard analog TVs, or another digi Televisions formats. However it is the finest quality Digital Television presentation format available.

HDTV is available in direct-view, plasma, rear screen, and front screen projection. It is not viable to watch HDTVs without 1080i HDTV tuner which is highly detailed.