The latest update for the Google TV app brings a new feature that notifies users when movies and shows marked on their watchlist are made available for free on streaming platforms, and it is toggled on by default, so you can enjoy it as soon as the update installation ends. This can be seen under the Watchlist tab in the Settings section of the app.
The Google TV 4.29 version that is now on the Play Store notifies users by default when their favorite content can be watched for free on streaming services. If for some reason you want to turn it off, you can find the option by tapping your profile picture and update your notification preferences in Settings. Considering that it's still called Play Movies & TV in some areas, these steps will be a bit different for users in this case.
The Google TV app acts as a hub that brings users' favorite content from across several platforms together. When a streaming service that you are already subscribed to adds one of the titles on your Google TV app watchlist for free, the app lets you know through a notification. That means you won't have to keep checking back anymore to see whether the movies and shows you added on that list have been added to one of the services you use.