Upgrade your DLNA, UPNP, OS, Roku, FireTV, SmartTV, ChromeCast or GoogleCast, and all other Devices Castie supports to watch webvideos, online movies, livestreams, live-tv shows, and music and images directly on your computer or connected TV screen with Castie. Mkv, Mp4, m3u8, hls livestreams, video, music, and images over https and of course Full HD are supported.