Sometimes i even wonder if people's who's videos are supported in HD format are really in HD.
360P and 480p don't pose much of a difference on even the best monitor's for me.
While i can REAAALY see the big different between standard definition dvd movies and Blu-ray Movies, Just because of the High definition television requirements.
1280x720 for 720P and 1920x1080P for 1080P regarldess both 720 and 1080 are very good picture quality and almost everything in this house has got some HD qualifying tech in it.
Ranging from 4 Tv's the 1 Desktop and 1 Laptop.
thats about it really.
But youtube....I have not notice the difference on a 1920x1080 resolution, of 480P to 720P
But sometimes i can see a better crispyness and w/e you may call it for 1080P
Depending on the video....
Perhaps this is all about the quality of Camera your shooting with...
or is it streaming alone.
I've never had this problem while streaming a Blu-ray movie from the sony store on my ps3.
in 1080 and 480, i see the difference even from 360 and 576