If you want see this, just have to find out if they aren't using the top three lines of a TV line from which ever company they are comparing, they won't be using LED or OLED tech. And those TV's that do tend use less resolution, will not be in the top top lines. Regular HD TV's from samsung are up to the 5000 line I think? 6000, 7000, 8000 all of the are qHD or higher, slim forms too.
Pretty sure the 5000 line doesn't have slim versions, and thus no LED backlight in 2013. This article was from 2015, might have changed now, but the last TV I bought was for my gathering room, 50 inch 7000 samsung the top version in that line, LED back light (late 2013), 5000 didn't have LED nor did it go up higher than HD. 6000's had LED's did not go past HD 2013 , the 7000 were LED's in 2014 with thin form factor again nothing past HD, then 8000's did have LED backlight when they were introduced in 2013 didn't have 4k and in the 2015, were the first to come with 4k with all the goodies. This has changed a bit now. So you can't even compare across the lines over the different years. Yester-years 7000 is today's 5000 or something like that and not ever year do they go down line segments like that either. This is pretty much the same for all TV manufactures too, cause I was looking at Sharp, LG, and Sony when I made my purchase.
