The Apple TV has a very specific subset of supported media compared to macOS / QuickTime. The supported formats are listed here:I have some videos that play just fine in the latest iTunes and latest Mojave, but on the Apple TV 4K it says they are in an incompatible format. Anybody have any words of wisdom?
That list is a lot smaller than the list for macOS CatalinaApple Support said:
and Mojave will support even more formats, due to Catalina dropping support for legacy formats, as outlined in the linked article).Apple Support said:
If you need to convert something, Handbrake is your best friend.