Apple TV 4K update will fix its video output problem

Currently, Apple TV 4K auto-configures those outputs during the set-up stage. Apple claims that this helps to avoid the irksome jittering that plagues some TVs when they switch in and out of HDR modes. The company’s solution is to strong-arm the best video setting for your set. So, if the Apple TV sets to output 4K Dolby Vision HDR, it will carry on displaying that format, even if you switch to a video made for standard dynamic range and standard definition. You can still force the Apple TV to display specific resolutions and refresh rates, but you’d expect a modern (not to mention pricey) set-top box to better handle itself. – Saqib Shah, Engadget