Directly downloading 4K content is most commonly done through official storefronts and "download for offline" features in premium apps. Offline 4K Support New Releases Yes, for purchased titles Apple TV (iTunes) Ecosystem Users High bitrate (up to 40Mbps) Amazon Prime Video Prime Members Select titles on supported devices Sony Pictures Core Sony Devices Market-leading bitrates up to 80Mbps YouTube (Movies) Available with Premium for offline viewing