I have a pioneer elite pro530 that has a spot towards the middle of it inside somewhere. I looked at the guns and mirror and do not see it. Also looked at the screen and protective cover and its not there. It looks blue and you see it best when something white is on. Its about 1/4" in size. If I have someone come out and clean the tv and calibrate it what is typical cost? Where do I find someone to do this? I am in the 1 hour north of the dfw area.