EDTV
EDTV stands for Enhanced Definition Television.
NTSC --> It refers to a video mode where the vertical resolution is 480 and the horizontal resolution is 640. It runs at a framerate of 60 fps (progressive, not to be confused with 60 interlaced fields).
PAL --> It refers to a video mode where the vertical resolution is 576 and the horizontal resolution is 768. It runs at a framerate of 50fps (progressive, not to be confused with 50 interlaced fields)
Both are often referred to as 480p and 576p (or 480p60 and 576p60). EDTV quality is considered to rival that of DVD. It is broadcast mostly in a 16:9 aspect ratio.