The Big Format Gaming Display initiative from Nvidia brings the G-Sync technology to large TV screens with diagonals of at least 65-inch. These large screens are also HDR compliant and come standard with a 4K@120 HZ resolution, but do not feature integrated TV tuners. Nvidia claims the BFGDs will have latencies close to regular PC monitors and the first models should be expected this summer.
https://www.notebookcheck.net/Nvidia-presetns-65-inch-4K-120Hz-G-Sync-HDR-gaming-display.277216.0.html