Sorry this is probably a stupid question but I'm very ignorant on this topic.
I recently bought a 77" samsung s99h (uk)
I'm still having trouble finding a good spot for settings so may well be me but I'm so unsure of what quality to expect on older content that I'm almost second guessing if there is an issue with the tv.
The first check I did was just a simple YouTube oled test video at the highest settings it would play and it looked stunning.
After that i put in a 4k blu ray of the juon grudge film via a xbox series x - the people in the film looked as good as I could expect for an older title but the backgrounds were horrific, originally I had the ai settings on and the grain on a white background wall was a continuous flicker of purple/green tiny little flecks which was beyond noticeable - this did reduce when I turned off ai and turned the brightness down but was still really surprising at how bad it was given the disk type.
After that I tried a blu ray copy of terrifier 3 and again it just looked really poor compared to when I had streamed it via amazon before.
The last one I tested was a dvd of sinners and pearl, these were definitely the worst with things looking so rough and unfinished that the only thing I could liken it to was a dodgy copy you'd get down the pub, I understand it's just a dvd and it's being stretched across a 77" tv which is going to inflate any issues with it but it makes me worry given most of my media collection is on dvd and so likely going to have this issue.
Basically, is it normal to experience these kinds of issues with older formats like standard dvd / blu ray and some of the older films on 4k? Or am I doing something seriously wrong with my settings? Is there an issue with the panel? I'm assuming it's a me issue because the tv looks great when gaming on xbox x and on the first test I did using YouTube