Help with Samsung model specs

Looking at getting a un55eh6000f. But it is really hard to tell what the differences are between the models as far as picture quality goes, all of the manufaturers do this. All they seem so care about is all the added on junk.

So lets assume that I don't care about: Smart TV, WiFi, 3D, Gaming, Internet, ect.....

Strickly wondering if the different models have the same panels and their for the same picture quality.

What is the diffrence from EH to ES, which is better

How about 6000,7000,8000 series. Is it just more bells and whisles?

Any body? Please?

I would like to order one up today

But like I said all that compares is the extra fluff that are put in these thing. I am only concerned about the LCD Panel itself and how good the back lighting control is from model to model.