I used the Disney “Wow!” Blu-ray to calibrate my set. I try to resist the urge to adjust other people’s sets. I was over at some friends’ house a few months ago watching an Astros game. Their contrast was so high that the Astros blue colors looked more akin to black. Their TV could look so much better.
This is a pet peeve of mine too. Most people are just clueless with this. Oddly women seem especially oblivious this. The Monster Inc. blu Ray has a good calibration tool on it.