Swiping down is the only way I know to see what resolution Apple is supposedly streaming. However, that doesn't necessarily reflect the resolution you are actually getting. There's no way to see the resolution being streamed at any given moment, for instance when a movie is starting and ramping up to full 4K quality, or after pausing a movie and it ramps up again, or during a scene where the quality seems to have dropped. On other streaming boxes and apps you can get detailed stream/resolution information at any given moment. On the ATV you can only see what you're supposed to be getting, and on the TV, only what resolution ATV is set to output. Extremely frustrating.