Roku device is a digital media streaming platform, which could be connected to a TV that allows you to stream video, music, and entertainment content. Think of Roku as a device that lets you do streaming on TV. With the Roku account setup to your TV, you can have access to unlimited entertainment which includes different channels, platforms, shows, movies, music like Amazon Video, Netflix, HBO Go, Hulu Plus, Spotify, Google Play Movies, HBO, CNN, NBC, FX Networks, star world, star sports, HGTV, YouTube, etc.