Manage your video collection with Xbox Video on Windows Phone 8
You can use the Xbox Video app in Windows 8, the Xbox Video website, or the Xbox Video app in Windows Phone 8 to add or remove items from your collection, and the changes will be reflected across all of your devices.
Remove a video from your collection
Deleting a video will remove the file from your collection, on your phone, and in all of your other Xbox apps. Here’s how:
Tap the Xbox Video tile or tap Xbox Video in your app list.
Open the video you wish to remove.
Tap More (the ellipses icon), and then tap Settings.
Tap Remove episode from collection or Remove video from collection, and then tap Remove.
Restore your purchases to your phone
To restore available video purchases (not including rentals) to your Windows Phone 8:
From the Collection, New TV, New movies, or Spotlight panes, tap More (the ellipses icon), and then tap Settings.