Standard DVD movies are still in the 480P and your 720 is much better. The Blue Ray disc movies are all in 1080P, playing it on your 720P tv will look good compare to a standard DVD. Most DVD on the market now converts them to 1080P, but not quit as good as you would get from a Blue Ray disc movies. Remember you won’t be able to tell the difference between 720P and 1080P in screen size smaller than a 46".
Standard DVD movies are still in the 480P and your 720 is much better. The Blue Ray disc movies are all in 1080P, playing it on your 720P tv will look good compare to a standard DVD. Most DVD on the market now converts them to 1080P, but not quit as good as you would get from a Blue Ray disc movies. Remember you won’t be able to tell the difference between 720P and 1080P in screen size smaller than a 46".