This technic was primarily started in the USA in the 1990s, by the Digital HDTV Grand Alliance. In other words it is said to contain 1080 lines, 16 x 9 point proportionally in ITU-R BT.709.

High defintion TV means display of big screen image with more detail and sharpness than observed in usual analogue TV, or some another techie television formats. It is truly a Digital Television screen format, and is known to be the highest quality DTV format accessible.

High defintion television is found in plasma, direct-view, rear screen, and front screen projection. It is unthinkable to glimpse HDTV without 1080i HDTV tuner which is highly specific.