View photo memories on Apple TV
The Memories category in the Photos app 
automatically arranges photos and videos you haven’t seen or thought about in a while. Trips, events, and moments are presented in as a short movie that you can watch on the big screen.
To get memories on your Apple TV, you need to have photos and videos on another iOS device, iPadOS device, or Mac linked to the same iCloud Photos account. The best memories created on those devices will automatically become available on your Apple TV.
You can’t create or edit memories on Apple TV, but you can see all of the photos and videos in a timeline and skip to your favorite photos or videos during playback.
You can also set memories to appear as a screen saver on Apple TV. See Create a photo screen saver on Apple TV.
Turn on access to memories from iCloud
Open Settings
on Apple TV. Go to Users and Accounts > [default user account name], select Photos, then turn on both iCloud Photos and Show Memories.
Browse your memories
Open the Photos app
on Apple TV, navigate to the Memories category in the menu bar, then browse any of the memories in the Watch Next row, or navigate down to browse Favorites.
Play a memory and control playback
In the Memories category of the Photos app
on Apple TV, select a movie to play it.During playback, do any of the following:
Pause or play: On the Siri Remote, press the Play/Pause button
, or press the clickpad center or the touch surface.Go back to the previous or skip to the next photo or video: Press left or right on the clickpad ring (Siri Remote 2nd generation or later) or swipe left or right on the touch surface (Siri Remote 1st generation).
Skip to a specific photo or video: Show playback controls, then navigate to the timeline of photos and select a photo or video.
Start playback from the beginning: Show playback controls, then select the Replay button
.Add a memory to your Favorites: Show playback controls, then select the Favorite button
.See more info: Show playback controls, then navigate down to see more information such as the music used and total number of items.
When playback is finished, the next memory in the queue automatically begins playing.
To change playback settings such as music and duration, see more information about people or locations, or edit the memory, open the memory in Photos on an iPhone, iPad, or Mac linked to the same iCloud Photos account. Any changes you make are automatically updated on Apple TV.
Delete or add a memory to favorites
In the Memories category of the Photos app
on Apple TV, navigate to a memory, press and hold the clickpad center (Siri Remote 2nd generation or later) or touch surface (Siri Remote 1st generation), then select any of the following:Add to (or Remove from) Favorite Memories: Add or remove the memory from the Favorite Memories album found in the Albums category of the Photos app.
Delete Memory: Permanently delete the memory on Apple TV and on all devices connected to your iCloud Photos account.