Apple recently expanded the universal search feature on its fourth-generation Apple TV to include MUBI, Hopster, and CW Seed. MUBI's universal search functionality has been added in the United States, Australia, Canada, and the United Kingdom, while Hopster has been added in Australia, Canada, and the United Kingdom. Additionally, only users in the U.S. can take advantage of having CW Seed in universal search.
For those unfamiliar, MUBI is a $5.99 per month service that gives subscribers a new film every day, with up to a month to watch it, "so there will always be 30 extraordinary films" for users to watch each time they open the app. Hopster is also a straight-forward $4.99 per month streaming service, aimed at providing "safe and ad-free" entertainment for kids. The CW Seed app is an offshoot of the main CW network, and is home to shorter digital series, as well as older shows like Pushing Daisies and V, but it doesn't include currently-running CW series, which are housed in the main app for The CW.
With these apps added, users will now receive content updates from each service within relevant universal search prompts. Universal search lets Apple TV users conduct Siri voice searches or text-based searches to find TV shows and movies across any app supporting the feature. When the Apple TV launched, not many apps were included in universal search, but Apple has slowly been expanding its reach ever since.
The current list of all apps supported in universal search, broken down by countries, can be found here.