Mitsubishi WT-42311 42 in. TV

I purchased this TV in Jan 2003. It operated for 2yrs flawlessly, awesome picture quality, good color, low glare. Mid year 2005 the TV would turn off and wouldn't turn back on till cooled down then you could continue watching it till finally it wouldn't turn on at all. A service tech came out to the house and had to take it back to the shop, 3 months later, yes, 3 months, not 3 weeks, I got the unit back and it has ran good till about a month ago the screen started flickering, you'll loose picture, picture will dim, picture will have blue haze, periodic green softball will flash in the middle of the screen, a different repair company came out, 4.5hrs later decided to take the unit with them, after one week they have witnessed the problem, have no idea what the cause is. I'm guessing in 3 months I'll have the TV back, if I'm lucky. Anyone know of a place where you can trade in TV's for upgrades. This ones going out the door!