Definition: video classifications

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