After playing with my new HD TV for a few days (I'm a noob), I have finally figured out the correct viewing modes to use for different types of content. I can't stand looking images that are stretched in any way. So I thought I'd share my findings so that other noobs get up to speed faster. Since my user manual doesn't explain the modes enough (for me) I'm assuming your manual won't be of much help either:
--------------------------------------------
My HD TV has these Viewing modes as does yours (or something similar):
Normal
Wide
Zoom
Panoramic
When viewing non-HD cable shows or content, the content will be in a 4:3 format so the TV should be set to "Normal" which is also a 4:3 format. This will give you an image that is not distorted. Personally, I will probably leave my TV in this mode as the "default" mode. The bars on either side are not that bad and you get used to them.
Then, when I see an HD broadcast (Comcast coming in a week to hookup HD service), I will look at the mode it's in while in my TV's "Normal" mode. If it is in a "wide" format such as 16:9 or some else that is not 4:3, I will switch the TV to "Zoom" mode. This will fill the screen proportionally, possibly leaving thin bars on the top and bottom, or cutting off a little of the image on the top and bottom, depending on the format of the content. The other modes stretch the content, but "Zoom" (on my TV anyway) does not stitch it, it upsizes it proportionally to fit side-to-side and the cuts off a little on the top and bottom, or leaves small blank bars on the top and bottom.
And then for DVD viewing basically the same thing applies. If the DVD supports a "wide" mode (most do), I will select that option from the DVD view menu and switch my TV view mode to "Zoom", just like I did above for HD cable content that was in "wide" format.
So Zoom mode appears to be the best mode for "wide" formats because it sizes the images proportionally as opposed to stretching the image like "Wide" and "Panoramic" modes do. I can't stand a stitched image because it is distorted.
Hopefully some of you new HD users will find this information useful.
-Chris.