I just returned a 2018 65" Q9F because it had terrible Dirty Screen Effect (DSE) I researched TVs long and hard before choosing the Q9FN over the LG C8. Needless to say I'm extremely disappointed in the DSE on the Q9F9. After I noticed it, Iran dirty screen effect test in 4k off YouTube. The results were extremely disappointing. Thus I returned it. has anyone else experienced significant Dirty Screen Effect with their 2018 Q9F9?
I have the Q70R and have DSE on the panel. Replaced the unit - it was slightly better but not totally gone.
I suspect this is in the design somewhere. I cannot keep taking panels back to John Lewis so now trying to live with the issue.
I am pretty stunned though.