The documented target is interface movement
Apple’s Apple TV accessibility overview describes Reduce Motion for movement in icons, posters and other interface elements. That should not become an unsupported promise that every third-party player stops all previews or automatic episode playback.
Identify what is moving: a navigation animation, a catalogue preview or the next programme starting. These can belong to different controls even on the same screen.
Compare the appropriate layer
Use the Apple TV accessibility control documented for the installed system and inspect a familiar system screen. Then open the viewing app and observe it separately. Keep that app’s own autoplay preferences in their own documentation.
If the system interface becomes more comfortable but a specific app still plays previews, record that outcome rather than assuming the accessibility change failed everywhere.
Keep comfort claims proportional
Choose the supported presentation that suits the viewer, and keep a clear way to revise it. This page explains a feature scope; it does not provide medical advice or certify the response of every app or flashing scene.
For support, describe the exact moving element and where it appears. A concrete report such as “posters stop animating, but this app’s video preview continues” identifies the boundary that needs attention.
Questions answered
Does Reduce Motion guarantee every app stops autoplay?
No. Check the app’s own supported playback controls.
Are interface animation and automatic next-episode playback the same setting?
Do not assume so. Identify the layer causing the movement.
Sources & further reading
Official references for the subjects discussed. Service terms and device software can change.