Apple TV - New Apple TV running tvOS
Plex for Alexa - Run your home theater or play your favorite playlists
NVIDIA Shield TV - Streaming box with Google Assistant and Google Cast.
BitTorrent Live - Live streaming video. iPhone, Apple TV, MacOS. Android soon.
Mi Box - 4K Ultra HD streaming and gaming box powered by Android TV
Stremio - Watch videos, movies, TV series and TV channels instantly.