You'll see some bad reviews for this TV for issues like ghosting in games, but do not believe it. These are people that don't know how to setup the TV and/or game console properly. It took me about 10 minutes or so of experimentation, but I eventually got everything working great in glorious 4k Dolby Vision, with no input lag.
First, you must turn off all the TV's post processing effects like Motion Enhancement, Noise Reduction, and Digital Noise Reduction. Next you have to make sure the TV knows your console is on that specific HDMI port, and that the console itself is actually plugged into one of the HDMI 2.1 ports. Then you must turn on Enhanced HDMI mode on the TV. Make sure to toggle game detection to on or auto mode. You'll also have to put your game console's settings to whatever it needs for 4K/HDR/DV/Atmos/etc. You'll know you've done it right when the TV puts a popup in the upper right corner telling you these things are active.
Now that you know what to expect from a setup standpoint, I'll talk about the quality. This TV's panel is a solid 9.5/10. The only defect you'll see is a slight amount of halo when you're watching intensely different contrasts, like a bright light bulb in a black room. It's the kind of thing you'd only notice or care about if you're a major TV snob, and there are TV's that cost 2-5 times as much out there for those people. It's barely noticable on my 55", and I imagine the 65" would be even better since it has 3 times as many local diming zones.
Gaming 10/10. When setup properly, there is no ghosting, and no tearing, and certainly none of the red lines others have reported (who probably didn't set it up right). I have both FreeSync and Dolby Vision enabled, and working properly with no issues. It took a bit of toggling different things on and off, and rebooting a few times, but eventually all the special features this TV supports were enabled. I've spent probably 15 hours gaming on it so far, and it looks absolutely stunning with Dolby Vision in 4k. Using FreeSync to create a variable refresh rate means the gameplay is buttery smooth, and free of input lag even when the console is having issues maintaining 60 FPS. It was the main reason I jumped on this TV. FreeSync or G-Sync is probably the most important feature to have nowadays when it comes to gaming in super high resolutions and framerates, and this TV is compatible with not just one, but both. Something that is rare even for pricey gaming monitors. This TV is essentially future proofed against any game console or graphics card you'll buy in the next 10 years.
Sound 10/10. It's the TV's integrated sound. It's not going to blow you off the couch with bass, but it is very clean, and very clear, and rich enough to not feel tinny. You won't feel the need for a subwoofer unless you want to turn this TV into the centerpiece of a serious home theater, or have a particularly large living room. For someone sitting 8-10 feet away watching movies or games in a small to medium room, it's not just adequate, but surprisingly good. My living room is pretty small, and I was initially going to purchase a soundbar to go with this TV, and maybe even a surround system, but after hearing the TV's integrated speakers, I might never be bothered to do so.
Software 10/10. I'm not a fan of "Smart" TV's, simpy because we have so many other devices to control our display. Why bother with making the TV smart when my Xbox, Firestick, and Roku are already smart? However, I changed my tune once I got into the user interface for this TV. There is very little input lag, and everything works smoothly. Android TV is just that. It feels just like I'm operating my phone, with the same level of freedom to do whatever I want, and not nearly as much clutter or ad spam as other Smart TV UI's.
So to sum it up, my only regret with this TV is not buying it sooner. It's hard to imagine paying more money than this, because there isn't much room for this TV to get better. Every improvement the other TV's in this class have over this one are trivial. You're simply not going to get a significantly better TV without spending 2-5x as much.
Edit: After a few more weeks of owning this TV, I have uncovered a minor design issue. The TV has built-in wireless and wired networking capabilities, as you would expect from a smart TV. Unfortunately, they are not 1gbps capable. The ethernet port is only capable of 10/100 connections. I speedtested it with different networking devices and servers, and was never able to get more than 85mbit/s. The wireless networking is much better, testing out at 280mbps, but then of course you have to deal with the sometimes reduced reliability of wireless.
This isn't an issue with most streaming use cases, as Netflix and other streaming services rarely go past 40mbps even with their 4k HDR content. You may run into issues with some very high bitrate bluray remuxes if you use wired networking. There's always the option to switch to a high-end streaming device if you really need wifi6, but that shouldn't be necessary for 99.9% of the content currently in existence.
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