A comcast booth had a split screen sample of 1080i vs 1080p. To me the difference required concentration to find.
this is tru from what i have heard...
i guess it depends more on native resolution so say if one display is
1,920x1,080 i vs 1,920x1,080p
it will look the same unless you look really really closely. like standing inches away
now
1,920x1,080p or even i vs 1,280x720p
then you will be able to tell the difference so basiacly 1,080pvs720
but alot of displays with 1,280x720p with that native resolution can accept 1080i
that is where that display versus a display that has 1,920x1080p will be a big difference in picture quality
so pretty much dont look at what your tv say oh it does 1,080 i or 720 p
look at their native resolutions.
of corse 1,920x1080p vs 1,920x1,080p the p will look a tad better but just very little