I just got a samsung qn90a and it has like noise on the screen. It's almost always there with hulu on the tv or the ps5. It's not there on amazon or on the samsung plus. It's visible in the home screen of the ps5, but never while playing games. It's sometimes visible in hbomax and almost never in netflix. Is this normal? My last tv was a 12 year old sony that wasn't really as complex as this thing so I'm kinda overwhelmed but worried.