Hello everyone. I have a question about these types of TVs. I see that there are expensive 1080p TVs and 720p ones. I see that there are also ones without tuners. I hear that tv will be digital in a few years so I am not dying to get 720p image right now. The question I have is when a TV is 720p, does this mean that the tuner built in can do a max of 720p or does this mean that the TV itself can take a max of 720p? Can I buy a LCD screen without a HD tuner (to save some money) and a few years down the road buy a 1080p tuner to receive this image?