I should add that color is just one aspect and there are many other core video criteria and image processing tricks such as noise reduction, sharpening, and de-interlacing (important for non-1080p sources). Just read some of the reviews on the Home Theater site that was linked to get an idea.
We went through the same growing pains with DVD players, but much worse. They couldn't even get the basic video levels right. After manufacturers finally started getting it right, the jump to BD players was not an overnight success. Just saying this so you realize it's not exactly child's play to get a perfect score on these tests.
Edited by AVfile - 5/16/13 at 10:42pm