Try the SERVICE ISSUES at the top of this forum.
If that doesn't pan out, get more estimates.
LINK TO -> http://forums.cnet.com/7723-13973_102-542437.html?tag=contentBody;threadListing
I have a Samsung HLT 5076sx/xaa. I called Samsung and they stated the TV was not under warranty and they would be unable to repair the tv without a cost to me. I called a local tv repair man in Oklahoma and he stated he could replace the chip for over $500. I'm at a loss right now. I certainly don't have the extra $500 to put into this TV nor a new TV. I have numerous Samsung prodcuts in my house, but this will certainly be the last. It appears Samsung is well aware of the problem but unwilling to fix it. Any suggestions would be greatly appreciated.