and truthfully, to the naked eye, untill you go into 50" screens, or you sit like 3 m away from the tv screen, you cant tell the difference between 720p and 1080p
On movies perhaps moreso, it depends on th display and the person. On games its a much diffrent story.
Tv and movies dont suffer generally with jaggies like games do. What your saying is the same as that a person wouldnt notice the difference on a PC monitor at a typical distance (under 1 metre) with a 720 and 1080 comparison res which is utter nonsense. Jaggies are vastly smoothed/reduced.
The problem with the games on consoles is that most are 720p native res so even folk with 1080 displays wont achieve much benifit on games. On a PC regards gaming etc the resolution is PURE theirs no cheats using "pixel doubling" or scaling techniques.