The test was mainly looking for the differences, and the first in backing up was the cable company (Pear Anjou). It was also a restricted test for a couple of magazine reviewers (with names) that also backed up. The details were never specific, nor published IIRC, but I'm assuming that were nothing out of the ordinary as to cover that the test were done under some restricted conditions to make it as objective as posible...at the end what they have to loose? Nothing in comparison as to win 1 million bucks.
BTW the skeptics did not backed up, the ones that proposed the test were the skeptics, the believers were the ones who fail to comply, and backed up, (the ones who had nothing to loose) both the audiophile, and the cable company...