According to our recent poll, only 29% of respondents actually calibrated their HDTVs. That means as many as 70% of you might not have your settings optomized. Fortunately, that's not too difficult to change.
If you think the picture quality might be off, follow this guide and learn how to calibrate an HDTV on your own. And, for the love of God, don't waste money on this service from a big box store.