[noggin]

Here is what you asked. The first 2 files are original and I see them very well on my PC monitor.
https://www.dropbox.com/s/dbygzia2rypbrz...b.mp4?dl=0
https://www.dropbox.com/s/xa630d26spg5tp...K.mp4?dl=0
The tests refer to 4K file. With 1080 it is even worse.
If I watch those files on my PC monitor I see them perfectely but with Sony TV I see very bad colours.
This is what I see on my Sony TV:
https://www.dropbox.com/s/bxulfvaw7s8b2m...V.mp4?dl=0
https://www.dropbox.com/s/au5rhgdvjgi6xw...V.mp4?dl=0
https://www.dropbox.com/s/cj2xlb69lic905...V.mp4?dl=0
Now I'm using using Standard HDMI.

It's definitely your TV as the colours are perfect on mine. Just a thought but have you calibrated the colours for different source types? 

Yes - I was about to ask the same thing.  I assume you've disabled all the terrible picture processing that is enabled by default and are in a sensible picture mode?

Do you want to PM me your Picture settings? Posting them here may derail the thread.