video classifications - technical definition

All video systems fall into either analog or digital categories. These are further subdivided by standard definition (SDTV) and high definition (HDTV) as well as how luminance and color are combined or kept separate. See SDTV, HDTV, YPbPr, YCbCr, NTSC and ITU-R BT.601.

                                   ITU
  SDTV        Analog     Digital   Standard

  Composite   NTSC/PAL   4FSC
  S-Video     NTSC/PAL
  Component   YPbPr      YCbCr     BT.601


                                   ITU
  HDTV        Analog     Digital   Standard

  Component   YPbPr      YCbCr     BT.709