Also called inverse telecine, 2:3 pulldown is a method of converting a 24 frame per second film into 59.94 field per second NTSC. It does not apply to films encoded for PAL. It works by showing every second frame for three fields, resulting in a frame-to-field pattern of 2-3-2-3-2-3.
See anamorphic widescreen.
See also HDTV.
Also see Webopedia's "Did You Know...All About Digital TV . DTV and HDTV".