Hello everyone. I was hoping someone could help me out on what I hope is a basic question. I have a Panasonic 53in widescreen set. I have a Sony DVD player (progressive scan) running to the set through component connection. I also have Comcast's HD cable box connected through component. Both of these actually run to my receiver which switches the video so I can run my X-box to the tv (tv only has 2 component inputs). However, the problem (if there is one) occurs with direct connection to the tv or through the receiver. Now, I know about aspect ratios and whatnot. I know on this set that, when viewing 4:3 material I should have gray bars on the sides. Therein lies the problem. My tv has several modes, Full, Just, Zoom, and 4:3. When the tv is receiving a progressive input the Just, and I believe, Zoom options are not available. So, it locks into Full, with the choice of 4:3 still available. The DVD player is set correctly for progressive output to a 16:9 set. Now, when I play a 4:3 DVD (like my wife's copy of Sabrina) and the tv locks into Full mode, the image fills the screen, and I have to manually switch the tv to 4:3 to view it in that AR. It's difficult to tell, but I'm pretty certain that, when in Full mode, the image is slightly stretched. It's not a big deal to switch on the tv, but what has me confused is that, when the cable box is set in the menu to do so (I believe it's a 480p setting for SD material) it will automatically add the bars to the side of 4:3 material. I don't have it set this way as some tv programs we watch in stretch mode (news and some other stuff) to limit burn-in. So, my question is (finally) shouldn't there be some type of side bars on my screen when outputting 4:3 material in 480p from the DVD player, with the tv in Full mode? I'm not sure if the bars should be the player generated (black) or tv generated (gray) bars, but I'm pretty sure they should be there automatically, without the need to switch to 4:3 on the tv. That makes sense to me as the DVD player should be outputting a set AR, and has no way of knowing how the tv is set. BTW, I have tried 4 different DVD players on this tv over the last year, and all produce the same result. I would expect this if the output was interlaced, because the tv doesn't 'lock' out specific modes, but not when receiving a progressive signal. Just in case anyone wonders I am certain the DVD player is outputting a progressive signal, as there is an indicator on the player that comes on when it is. I'm sorry for the length of the post, I just wanted to give as much info as possible. I'd greatly appreciate any information anyone might have as to why this is happening, or if my line of thinking is way off. If this post is in the wrong forum, I apologize, and mods can feel free to move it to the appropriate place.