the shop where i got the tv from arranged for a engineer to come out
and he said it wants a new back cover & a new screen when you are
about 90cm away from the tv you can see a blue light along the
bottom of the picture.
its under a 5 year guarantee what happen's if i get the same issue with in
the remaining 3 years of the guarantee.
I had new panel and back cover fitted in 2018 now that panel has
gone. Yellow line up going up the screen, lucky enough it
is still under warranty. But they have said they will replace
the tv. I have gone for another Samsung hope that will last
a bit longer.