Just in case you were wondering, Roku happens to be a company that churns out extremely popular set-top boxes in the past, with a streaming stick to boot, where these will then deliver streaming content right into your living room from various channels including the likes of Netflix, Hulu Plus, Amazon Instant Video, and HBO Go among others. Apart from that, the Windows 8.1 app would enable the user to control the Roku device in your household to boot.
With Roku for Windows 8.1, the app will set up your device in such a way where it can detect all Roku players on the local network automatically, check out installed Roku channels as well as launch the channel with but a single tap. You will be able to choose from the Windows 8.1 version and the Windows Phone version, depending on which is the primary device that you rock to.