What's the difference between the Samsung Lcd's 650 series vs. the 750 series?

Question

Same thing with the Sony Lcd's.. the W vs the Z series? I know the latter of the 2 have thinner bezels, but is that it?

Answer 1

Manufacturers are trying to create "pro" models of their TVs in order to make some more profit (and make profit for the retailers).

There are some small differences, but all in all not very noticeable.  The 650 series and the W series are really nice TVs and I don't enough difference to justify the differences in price.