Call in and get an estimate. Be aware that just like our PCs, laptops the out of warranty repairs seem to exceed replacement costs. Nothing new about that.
Try a TV Repair Forum. Once in awhile you see AVSFORUM pop up as a choice. But remember you are asking for free ideas and help so don't expect much.
I have a 32 inch Sony Bravia LCD TV and I turned it on a few days ago and lines across the screen from about 1/4 the way down the tv to the bottom. The bottom 3/4 is visible but the picture jumps around a lot and lines streak across the screen. Does anyone have any idea what I should do about this? I appreciate it!