As for the Roku channel, you can use your iPhone or Android handset to send live or recorded TV to another TV in the house, so long as it's connected to a Roku box (it's fine if that other set doesn't receive cable). To get started, you'll need to download the Roku channel from the Roku Channel Store. You'll also need either the SlingPlayer Android or iPhone app, if you don't already have it installed. For now, this setup will work with the Roku 3, Roku 2 XS, Roku 2 XD and the Roku Streaming Stick. Starting next week, Sling will also support the Roku 2, Roku 1 and Roku LT as well.
Engadget , Sling overhauls its TV-streaming app for iOS, adds Roku channel; Windows 8.1 app planned for December, Sling overhauls its TV-streaming app for iOS, adds Roku channel; Windows 8.1 app planned for December