You are confirming here that you do not understand about different TV's having more accurate colours when calibrated, you seem to think they are all the same once calibrated.
Here is some facts with proof that you cannot argue with. As I have to resort to explaining it to you in pictures now.
Philips POS 9002 calibrated colour accuracy :
Panasonic EZ952 calibrated colour accuracy :
Notice how the colours are much more accurate on the EZ952? For example green on the POS9002 the 75% and 100% are almost the same, neon green grass etc.
The colour accuracy is how close they are to the squares by the way, you seem to think all TV's are the same when calibrated, they are clearly not, especially in HDR, in SDR the differences are smaller and most new TV's can do SDR accurately.