I recently purchased a Panasonic Viera HDTV, it is widescreen. I did not have the remote until yesterday cuz it was a floor model and the original remote was lost, it was cheaper getting it that way. There was a button on the remote for changing the aspect ratio as follows; Full, Just, 4:3 and Zoom. I was just wondering what the difference is between the "full" and "just" aspect ratios, because I couldn't really see much of a difference. thnx.