Enhanced widescreen letterboxed TV system compatible with conventional PAL system using the ' Motion Adaptive Color Plus' technology to reduce cross-effects plus a special Helper Signal to recover full vertical luminance resolution.

PALplus is the name of a strategy group formed in 1989 to develop an advanced analog terrestrial transmission system compatible with conventional PAL. The group, made up of German, Austrain, Swiss and British broadcasters as well Philips, Thomson, Grundig, Nokia, Sony and Samsung, set itself the task of enhancing the PAL signal by developing the 16:9 letterbox format, increasing the useable luminance bandwidth, reducing cross-colour artifacts, working on echo cancellation and improving sound.

An enhancement of PAL that provides 16:9 aspect ratio and improved picture quality (reduced cross-color and cross-luminance artifacts). A PALplus signal is shown in a letterbox format on a normal PAL TV set.

A widescreen (16x9) television standard in use in Europe that is compatible with existing 4x3 TV sets. Non-16x9 TVs show the picture in a letterboxed form.

PALplus is an extension of the PAL analogue broadcasting system for transmitting 16:9 programs without sacrificing vertical resolution. A standard PAL receiver will display the image in letterbox format with 432 active lines, while a PALplus receiver can use extra information hidden in the black bars above and below the image to recreate 576 lines of vertical resolution.