I doubt very much there is anything wrong with your set, and correcting user level picture adjustments really isn't something covered in the warranties, unless there is a severe problem that would require service menu adjustments, I wouldn't call Panasonic. You could call an ISF tech also, but that won't be cheap, so keep that in mind.
I tried giving you a suggestion earlier in this post that you might use to improve your analog picture for the s-video input. That seemed to get overlooked with everyone correcting T. So here it is again in more detail.
Plug your s-video cable from the DVD player to the TV, then take out your DVE and set the TV to the s-video input. If your tv has video memory settings for each input then great, but if not you'll need to write down the component video settings before you make the changes that might effect the work you've already done with the component input. Afterward, adjust the levels as you did before using the DVE test patterns at the end of the disc that way you don't have to listen to all the vebage again if you don't want to. After your done try out your satellite on the s-video input, and see if the picture looks any better. By doing it this way you are simulating the satellite signal as it is being sent to your tv, and making everything look as good as it can using this particular input, which is one you'll probably be using quite a bit for everyday TV viewing. You'll want to write down these settings as well, just in case you need to change them back for watching a DVD later. Some TV's have the memory settings some don't. I can't tell you what your set will do as I'm not that familiar with it but, either way it can't hurt to write them down.