This is what Sony said in their pr. NTEK only a content provider. Netflix is a partner. Whoops
"Increased 4K Content
As the leader in 4K with expertise in industry-leading innovation in televisions, technology and content, Sony's new 4K Ultra HD TV line-up will expand access to 4K content through its partnership with Netflix, the world's largest subscription video service and the Sony Video Unlimited 4K service. The companies will work together to provide an enhanced Internet TV viewing experience for consumers with new features including TV Instant On, Fast APP Resume and Fast Video Playback.
These partnerships, along with content from providers including Amazon Instant Video, Ultraflix and Toon Goggles, will expand Sony's 4K line-up to include more than 1,300 blockbuster movies, hit TV shows and other 4K titles, to become available on the new 4K Ultra HD TV line-up"