Samsung flat screen TV’s

All my 65 inch Sony's have been wonderful. No issues ever.

Planned Obsolescence.

Sorry to hear about your experience with Samsung. I've only had Sony and Panasonic over the years with no issues. Current unit is a last gen top of the line Panasonic plasma bought nearly a decade ago. Has moved with me twice and still looks and functions beautifully. I absolutely love my plasma and will replace (when I have too) with an Sony or LG.

"anyone with experience with the lower end of the 85" range?"

I've been looking around for an 85 or larger.  I've learned a little bit by watching the very good YouTube reviews.
The bottom line is where will you use the TV. Bright room, dark room, windows...  If you need a brighter tv or for gaming etc... then you can choose.  
It seems the reviews are very critical,  much like people here about audio. Nothing wrong with it, they are fans of optimal equipment. I say go look at it and if it looks good to you, then it's good. Doesn't matter if it only has 800 nits instead if 1200 nits etc etc...
Personally, I think the Sony 900H is a very good buy. Roughly $2000 at Costco or anywhere. Doesn't really need calibrating. The colors are great out of the box, 85 inches and it's a Sony.
Good luck

I am in the market for a big TV.  My 65" SHARP, which is at least 15 years old, is fine and hanging in the bedroom now and so far it is working fine.

My new house has a place for an 85"+ screen, and my research says that the best picture is now the LG OLED TV, but it is a bit expensive right now so I will probably wait a while.

Cheers!