As you probably know models with a T represent 2020 sets and models with an R represent 2019 models.
Q80T = 2020
Q80R = 2019
There is lots of data on the 2019 sets with the Q80R getting very favorable reviews. In fact, from what I've seen most resigned there isn't much improvement going to the Q90R as the Q80R hit a sweet spot.
Oddly enough, Samsung "dumbed down" there 2020 lineup. Less dimming zones in models in a Q80T vs Q80R for instance.
So many believe you have to compare a lower 2019 model to a higher 2020 model meaning...
No 2020 model = Q90R
Q90T = Q80R
Q80T = Q70R
Q70T = Q60R
Additionally models you may find at Sam's or Costco appear to be numbered as...
Q7DR = Q70R
Q7DT = Q70T
I like this series of Samsung's. While the Q6DR didn't look quite as punchy as the QD7R, it was still in my upper ranks of good PQ. FWIW, Sam's had a 75" Q6DR for $1299 and to me that price makes it a good value.
Some of the upper 2020 models hover in the $2,500+ range. When I think "value" models I think of something less expensive. My mind goes to these sets....
Vizio P series Quantum
Hisense Quantum H8G
TCL variants (I'm not as familiar with them)
These models would represent sets in the $1,500ish range for a 75" screen. There is likely some consistency issues as well. I do know I have an older Hisense 55 H8F as a computer monitor and it has been a champ from day 1 and for the price paid I have been extremely pleased.
Later this year when I replace the bedroom TV I will be looking at a 55-65" variant of one of these value lines myself.
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