Apple TV - New Apple TV running tvOS
BitTorrent Live - Live streaming video. iPhone, Apple TV, MacOS. Android soon.
Caavo - One search. One experience. One remote. All your content.
Plex for Alexa - Run your home theater or play your favorite playlists
NVIDIA Shield TV - Streaming box with Google Assistant and Google Cast.
WWDC TV - Watch WWDC video on your Apple TV