SEE OUR 16 ORIGINAL DVDs  There are two TV screen shapes, the square box shape of older TVs which have a 4:3 screen ratio, sometimes called "full screen", and the newer screen ratio of HD TVs called "wide screen" in 16:9 ratio. Our full screen dvds were produced from 2005 to 2010 and widescreen dvds were produced from 2010 to present. Full screen dvds are lower resolution so are best viewed on smaller screens. Widescreen HD Blu-rays are the best visuals for large to very large screens and in gyms.