Would someone please be kind enough to give me some tips on how to set this LCD HDTV in order to get the best possible picture quality with a Xbox 360 connected to it via HDMI. I don't have any fancy gizmos or software that I can use to test and set the settings and I just can't seem to find a setting that looks good. I would really appreciate it if someone could help me out with this. It's primarily for gaming, but I do use it for DVD's now and then.