Keep the old TV or box working until the replacement has played a test channel. On the new screen, open its app store and verify the publisher and edition. A licence restored through the store may cover the application while playlist credentials and favourites still live on the old device. Write down what you paid for and which store account issued the receipt.
If the old app supports export, check the publisher’s instructions and save it somewhere private. A settings file can include sign-in values or playlist addresses. See whether the replacement edition accepts the same backup format before signing out of the old screen. If the new app can play the feed but the favourites list is empty, record that exact point in your forum post.
For a reply, share the two device models, player versions and whether the same store account is in use. Keep the order ID and backup file in your own records.