Mitsubishi HD1080 series problem

This problem has been going on for the last 7 years or so.  My parents have given up on the tv but i still think it can be fixed.  So here's the problem:  When the tv is turned on the screen goes completely blue.  I found out by curiously messing with the settings that if I change the contrast/brightness/color all the way down and quickly turn the tv off and on again the tv no longer goes blue.  When i re-adjust the contrast/brightness/color everything looks ok except for a yellow shadow/tint around the black colors on tv.  I would like to know where the problem lies and if this is repairable.