The “Hide Live Scores” feature is currently available on Roku, Xbox, SamsungTV, and Comcast X1/X1 Flex. In the future, it will also be available on AndroidTV, FireTV, tvOS, and iOS/Android.
You can access this feature by navigating to “Video Settings” within the Settings page. “Live Score Data” (on by default), will show live scores underneath Live video tiles.
By turning off “Live Score Data”, scores will be hidden underneath Live video tiles. This setting is only stored locally; it does not affect any other devices you may be logged into. So you may want to repeat this process for all devices you wish to hide live scores on.