In Europe, the PAL TV format, with its higher resolution than NTSC format, meant the quality issues of letterboxed or matted movies on TV was not as severe. There is also an extension to PAL, called PALplus, which allows specially equipped receivers to receive a PAL picture as true 16:9 with a full 576 lines of vertical resolution, provided the station employs the same system. Standard PAL receivers will receive such a broadcast as a 16:9 image letterboxed to 4:3, with a small amount of color noise in the black bars; this "noise" is actually the additional lines which are hidden inside the color signal. This system has no equivalent in analog NTSC broadcasting.