TCL 43P20US (43")

I have been trying to connect tcl for 12 months for a 6 month old tv with a black dot in the centre of the screen. They will not return my emails or phone calls.

TV 4 months old and failed TCL advised they will only repair even through TV was less than 6 months old Kambos advised contact TCL did not want to know otherwise, If the first time I have gone away from my normal suppliers Good Guys and Harvey Norman, Will not be doing that again. Both Good Guys and Harvey Norman replace complete units if they are not very old and I don't consider 4 months to be old. (Bought a replacement TV from Harvey Normans 3 years replacement offered no problem)

Currently running in PC mode, HDMI 2.0, 4k@60hz, 4:4:4 chroma set in nVidia panel
Input lag seems very low.
Its very responsive in 4k FPS games like PUBG, Division, Ghost Recon Wildlands – but anecdotal at best.
Text is very readable at 100% no font scaling 4k
if you look really close, there is some banding of colours – screen door effect, simply sit back a bit
tv features – dont care
-would definitely recommend for gamers-

If the colour is red then, it affect the whole screen.
The most feature I wanted is screen mirroring and can't get it to work, emailed support I never got a reply back. I would not recommend this brand to any one, spend a little extra $ and get a known brand. I will not buy a TCL product again.

August 7th 2017 Update: TCL ultra 4K TV

I called the TCL support and I was advised that this p20us series is the latest one but screen mirroring with iPhone doesn't work and they suggested me to use the android phone instead, iPhone came out more than a decade ago n it is not supported? I just hope they have a firmware update to resolve or I will never ever try another TCL product.