Dot to dot is also called 1:1 pixel matching. My LG had built-in red, green, and blue filters when in the Expert mode for calibration. You'll probably have to buy a good blue filter that is traceable back to a reference standard for accuracy. Somebody else may have a better idea. Is your set the Sharp that advertises yellow pixels? If so, I've heard that calibrating those to accuracy is complicated because yellow is a combined blue/green. Again, hopefully somebody who has experience with the Sharp's will comment. It's been awhile but I think the x.v. color mode is only on a few blu-ray disks, and then you have to have a compatible blu-ray player that can decode and transmit it. I don't think you'll really see any perceptible difference if you tv is properly calibrated. You can go to the Display Calibration forum and ask for a local calibrator. I think there's even a sticky for it. It would be wise to ask for references, when his equipment was calibrated last and to what, experience with your particular tv, etc.