You realize the data in that blog is over 1.5 years old right? I have D* HD and can tell you that all their new MPEG4 HD channels launched since Sept 2007 look just as good as OTA (which I also have). Yes, D* older MPEG2 HD channels are over compressed and are noticeably worse looking than MPEG4, but they are beginning the process of getting rid of MPEG2 and converting those 10 channels to MPEG4. I don't have E* so I can't comment.
"We named the dog Indiana."
Directv since '03