Learn how to set up your voice remotes.. Try programming your remote control with another method first. If you were unable to make your Xfinity remote control work to power your TV on and off, it's likely that there's an issue with the code(s). This method should be a last resort, as you'll have to cycle through tons of codes until the right one is found.
Follow these steps to program remotes with a Setup button (e.g., XR11, XR5, XR2): . Turn on your TV and TV Box. Press the "Setup" button on the remote until the LED changes from red to green.. Learn how to pair and program your Xfinity Voice Remote.