Are you looking to upgrade your Apple TV? If you are, then you might be interested to learn that according to 9to5Mac, they have discovered some references made in the tvOS 14.5 beta that suggests that support for 120Hz refresh rates could be coming to the next-gen model. This means that those who get the new model might be able to enjoy buttery smooth frame rates.
So where does this leave existing Apple TV owners? Right now, the latest Apple TV supports 4K resolution, but unfortunately due to the fact that it uses a HDMI 2.0 port, it is capped at 60Hz. Presumably the ability to support a 120Hz refresh rate means that the new model could come with a HDMI 2.1 port which would enable 4K at 120Hz.
Also, in case it wasn’t already obvious, the new model wouldn’t suddenly give your TV magical powers and a free 120Hz upgrade. Your TV would have to support 120Hz (or higher) to begin with for this to work, so for those running older TV sets or models that don’t go beyond 120Hz, then you probably won’t be able to fully take advantage of the new feature.