I need to get a new TV (you wouldn't believe how old the existing one is!) and something in the 42inch to 47inch range. I have noticed that there appears to be a sudden jump in picture quality to 4xHD available now. Whilst I appreciate there is little to watch at this quality at the moment I am wondering if it is worth buying one to 'future proof' the set for a good number of years. I doubt that I will buy another for quite a while. On the other hand am I wasting my money? Existing HD is pretty good and I do not watch much TV or dvd's. I do need to get another set though. Any thoughts?