Xtream-UI is an interface that allows you to control any piece of media that is streaming through your IPTV. You can use the same application that you use for controlling your computer remotely, like your web browser, or you can use it on your television. What’s great about Xtream-UI is that it is completely free, and that there is no reason why it can’t work with all kinds of devices that support streaming media, such as your HDTV.