This type of connection takes the native components of display ie: Red, Green & Blue (RGB) and separates them onto individual wires in the form of Y/Pb/Pr. This uses the luminance (Y). The difference between the luminance and the blue channel (Pb) and, likewise, the difference between the luminance and the red channel (Pr) then combined with (Y) you get a very clear mathematically obtained Red and Blue signal. Then the sum of R and B are subtracted from Y to obtain Green. The MPEG-2 encoding system used by DVD is based on color-difference component digital video. However, very few televisions have Component video inputs.