1080i has over a million more pixels than 720p. It's just that only half the pixels in 1080i are actually on the screen at one time, but the delay is so small that the human eye cannot perceive it. I hate the fact that most sports are in 720p, I don't care about any tiny bit of so-called motion blur if the picture is going to look like crap in terms of HD quality. I can notice the lower resolution and it looks like crap to me. You can also really tell the difference on tv shows when there are close-ups on faces and such. As far as I'm concerned, anything below 1080i/p is not really HD in my book(yes I know technically it is, but whatever).