Image retention, the kids call it "burn-in" on the street, is something every flat-panel has to deal with. HD Guru dug up a case involving not a plasma but, gasp, an LCD. It seems like logos were "burned" into the the right of the screen. The issue is something that rarely pops up -- even more rare on an LCD -- but when it does, we're sure most owners shave a year or two off their life as their heart skips a beat. There is no reason to fear that your pricey, little baby will always have that Sony DVD logo burnt in, as most burn-in can be easily eliminated. Follow the jump for some DIY tips on prevention and elimination.