The problem with HD is that isn't not just about resolution but bitrate as well. It's easy to get 720p at a bitrate of 2000kbps, but in no way is that going to look anywhere near as crisp as the source itself.

This is where you also get companies like Apple and Microsoft peddling their high-resolution content as "HD", even though it really pales in comparison to Bluray/HD-DVD.

I'm thinking there needs to be some objective test for determining whether some 720p passes the muster of actually calling itself HD. And this really needs to include things like macroblocking, looking at degree of blurriness, etc. before we really get to the bottom of this.