Is this your first HDTV? Some people do find it a bit jarring to adjust from the picture that they have been used to for their whole lives to flat panel HD, and I think it fits the symptoms you are describing, as it is especially more noticeable in more cinematic tv programs than reality shows. The picture is improved so vastly in HD that it almost seems "fake" purely because it looks so much more "real", almost like it has lost some of the, for lack of a better term "cinematic mood". It's less noticable in reality tv because the camera techniques on those type of shows already have a more "real, less polished/moody" feel to them.
Does that kind of fit what you're describing, or am I way off base?
OP - find your picture settings in the menu and turn motion enhancement to OFF. It's an ugly feature that should always remain in the off position.
If you think it's something to do with the camera angles, your picture settings may also be giving you an incorrect aspect ratio. Toggle the "format" button on your remote, or look in the manual to see what it's called. Perhaps it's incorrectly stretching the sides without stretching horizontally resulting in people and object's dimensions not appearing as they do in real life. It drives me nuts how many people have their TV's set incorrectly like this but they can't seem to fathom that it's okay to watch 4:3 material with black bars on the left and right.
