
1) Color space
Found on
https://www.crosswordclues.com/clue/ypbpr

Some video cards come with video-in video-out (VIVO) ports for connecting to component video devices. ==Technical details== Sending a green signal would be redundant, as it can be derived using the blue, red and luma information. When color signals were first added to NTSC-encoded black and white video standard, the hue was represented by a phase ...
Found on
http://en.wikipedia.org/wiki/YPbPr

Component Video signal the same as YUV where Y = luminance; Pb = blue minus luminance; and Pr = red minus luminance.
Found on
http://www.encyclo.co.uk/local/20171
No exact match found.