I'm trying to narrow down choices for a replacement for my Sony KL50W2. I may still go the lcd route for reasons that will become obvious. Choices seem to centre around Panasonic and Pioneer but I don't know much about 50" panels so i don't know what else is decent out there. I would appreciate reasons for any recommendations made. The only concern I have with plasma's are that I prefer to watch regular telly in the native 4:3 aspect ratio rather than stretching the picture to fit the screen, screen burn around the vertical black bars on either side of the screen (or top and bottom with wide aspect material) is therefore a concern for me.