I purchased a Sony 60" HDTV and HR10-250 one year ago. It used to be, that all SD shows had the verticle bars, and HD filled the whole screen. That is how I prefer SD: unstretched. Lately, more and more SD shows are stretched to fill the whole screen. I haven't changed any settings on the TV or on the HR10-250. Not all SD shows are stretched, just some. Why is this happening. Stretching SD makes everyone look fat! Any ideas?