Green Hue once Lamp Replaced

I've heard of that happening before. If you have a component cable hook up check the connections first to make sure a wire didn't come loose. If other inputs and the TV menu happen to be green then the light engine may have failed. Contact sony for info as some of their sets are still covered under extended warranty. This link has more info about the subject as well.
the tv dude

Your optical block is bad. class action lawsuite going on . should be covered under manufacturer EXTENDED warranty. if not they are supposed to offer to buy you new tv. contact nearest AUTHORZED repair center. hope that helps