Originally Posted by drjones

One of the biggest things causing the price difference (besides size) is going to be the tv's resolution.

720p TV's will be lower priced. 1080p will be the most expensive. 1080i's will be slightly lower than 1080p.

You also want to look at the contrast ratio of each tv.. the more the better. Over 10k is good. A lot of plasma's and LCD's have trouble displaying black too, so be sure to check out how they look in the stores.