I am now ready to buy my HDTV. I have been looking at the big Samsungs. Remember this is the first tv for a non tv home. We will mostly be watching CDs and downloads, not much broadcast...except for the Superbowl for my son (if I can figure out how to stream it on the net). The big Samsungs often have 3D. Will the 3D affect the regular view? I am looking for a clear viewing set that will manage action I keep reading that TV is changing and I wonder whether these TVs are old technology? Can I actualy...