In the Samsung literature, they say there are three types of Backlights: Full Array, Direct Lit and Edge Lit. I assume that the picture quality on a TV is a fucntion by the type of backlight. Some TV specs have that information - like UN65TU8000. Others do not - LIKE THE 65TU700 OR 65TU850. I am looking to buy a 65 in TV with the best picture and trying to use the Backlight as a criteria. Correct?