WHAT IS FULL SCREEN? There are two TV screen shapes, the squarer shape of older TVs and the wide shape of flat panel HDTVs. The older TVs have a 4:3 screen ratio called Full screen, and the HD TVs have a 16:9 ratio called wide screen. The 4:3 ratio dvds were produced from 2005 to 2010 and widescreens and Blu-ray from 2010 to present. Full screens are lower resolution so better watched on a smaller screen and are being phased out one by one as we produce a similar journey in Blu-ray and widescreen.