I'm not going by a chart I'm going by my own

. I can and have download the same content at both 720p and 1080p and play them one after the other and the difference is easily noticable. Everything is just crisper and sharper in 1080p, even at 7 feet away. Perhaps not everyone is as discerning as me.

. I do download stuff for other people and they notice the quality differences right away as well. The difference at 900 vs. 1080 would be far less noticable obviously, as it splits the difference. I think screen size has a lot to do with it too. On a 42" tv the size of thelines of resolution at 720p are almost the same as they are on a 55" at 1080p. On a bigger screen the difference is more noticable unless you're sitting very far away.