TV shows red / pink in certain places?

I've already checked the cable, slot, etc., but it's down to the television itself. When I use my ps4 to switch to the television, it is red or pink in some places. So not a whole area but specific places (as you can see in the pictures). As if the television can't display certain colors or shadows correctly and simply replaces it with pink or red. The TV was rarely used and had enough space, etc. But there was dust at the openings so that it could not ventilate properly and was overheated? Does anyone have experience and know whether it can be repaired?

Does it also display these colors when you watch TV or Netflix etc?

If so, then it's the TV.

If not then on the Playstation.

How old are they both?

You can send it back 2 years ago

Since we don't know what it should actually look like, can you mark or describe the places you mean?

Jo shows the colors in everything. Is definitely the television, I also connected an old ps2, that's how it was. The TV is a bit older but never had any problems. On one day we went the next day it was like that

Then you have to exchange it or keep it. Unfortunately there's no other option.