This tv has problems with stutter and jutter on network programming as well as some older SD
It is unwatchable at times. I contacted Samsung support , who were of no help.
I changed the expert settings for blur and judder reduction as well as turning it off.
Tv is on firmware 1402.
Samsung support said there is no firmware update for this.
Do not buy this tv
We have the same issue. I will keep until about the end of Jan 2021 and return to Best Buy.
I hate the lip syncing problems. And Samsung provides no help. If they fix I will keep the TV but if not I shall return.