Gaming on a big screen is great but TV LED displays generally don't perform quite as well as a gaming PC monitor. If have a Nvidia card and require G-Sync, plus have plenty of cash you will be able to get one of the Big Format Gaming Displays (BFGD) that was demoed at CES this year.
However, for the rest of us, if you have a 2018 model Samsung QLED TV or the NU8000 LED TV you can now improve the quality of your gaming via a firmware update to enable AMD's FreeSync tool, which syncs refresh and frame rates to reduce screen tearing and stuttering.
While G-Sync is the most popular for PC gaming due to the Nvidia dominance it requires a physical chip and is a closed system, unlike AMD's open alternative. The Xbox One S and X both support this feature so Freesync on a TV display is probably more important than the Nvidia equivalent.
Sadly there are some limitations to this new feature. It limits the resolution of those TVs to 1080p, and you might find some issues with brightness. For now, at least, it seems like you can choose between smoother gameplay or sharper visuals. Once you've updated the firmware, you can toggle the feature under your TV's game mode settings.