@Josoap
As compared to what - WiFi, or Cat 5?
You need to find out what speed the Ethernet on this set runs at - I couldn’t, just that it had it.
But it’s highly unlikely that your router runs at more than Gigabit Ethernet anyway, for which Cat 6 will suffice. (Cat 5e likely will too, but it’s less certain).
Have you got a specific problem, such as a house pre-wired for Ethernet? I have, and I could see a Gig going into it, but only 100Mbits at the other end. Fortunately though, this was a faulty Cat 6 patch cable from the socket on the wall to my Gig switch, and when I replaced it with a good one, I could see from the switch that it had gone up to Gig.
My fast fibre is nominally 500 Mbps (still only half a Gig), with 350 achievable in practice, and nothing less than 180 anywhere now.
But why not buy the best cable you can, for future proofing? When you are spending thousands on a TV, don’t sweat the small stuff....
And are you sure, by the way, that you shouldn’t be asking us about HDMI cables, instead or as well? Get Ultras.
My favourite bedtime reading is a Sony product manual…
