Install and activate your Xfinity gateway through xfinity.com/authorize to approve the Xfinity products and services. Xfinity is a streaming service providing live television channels, DVR recordings, linear cable networks, and videos on demand.Open the app from the Xfinity Channel in the Roku Channel Store and choose Sign In.You’ll see the Activation Code screen on your Roku or Roku-connected device. Go to xfinity.com/authorize from another device.From the web browser, enter the six-digit code provided from the Roku device. www.xfinity.com/authorize Enter your Xfinity ID and password, then select Sign In.You'll see a Success! message. The screen of your Roku or Roku-connected device will soon update.The Terms of Activation will load on your Roku-connected device or Roku TV. Scroll to read the terms and select Yes to accept and continue. If you select No Thanks, the activation process will restart.Name your device and select Confirm.You’ll see the main menu and you’re ready to begin using the app!