Catalyst is a multi-platform solution that supports streaming and downloading of DRM protected movies. It was developed for demo purposes and to showcase at CES 2012. Users can link their purchased UltraViolet™ movies or explore new titles. Server-side was developed to serve HTML5 pages that are compatible with multiple clients including MS Windows, Mac OS X, iOS, Android and Samsung Smart TVs.
Check out what The Verge had to say about it.