I HAVE A XBOX ONE X HOOKED UP TO THE T V THE ONE X ONLY SHOOTS OUT 4K 60 HZ THE SERIES X WILL DO 4K 120HZ EVEN THOUGH IT SAYS PRO GAMING ENGINE ON THE BOX AND IT HAS A 2.1 INPUT IT IS ONLY A 60HZ PANEL IT WONT DO 120HZ IF YOU BUYING A PS5 OR SERIES X AND YOU WANT 120HZ YOU GONNA HAVE TO BUY A LOT MORE EXPENSIVE T.V LIKE A SAMSUNG Q70 T THAT HAS A 2.1 INPUT AND A 120HZ PANEL OR AN LG OLED T.V