| Definition: | | High-Definition Television. A television system with approximately twice the horizontal and twice the vertical resolution of current 525-line and 625-line systems, component colour coding (e.g. RGB or ycbcr) a picture aspect ratio of 16:9 and a frame rate of at least 24 Hz. Currently there are a number of proposed HDTV standards, including HD-MAC, HiVision and others. |