Sorry for the inconvenience 1. For activity, you need to assign device commands to the buttons on X1 Remote. If you assign the channel button to a TV, the channel key controls the TV. You can reassign the command activity edit -- assign keys for X1 Remote. Click the channel location to view the currently assigned commands. You can also change them to other commands of other devices. 2. If your activity channel location is assigned with Vizio's channel command, it may be a code base exception, and you can try to repair it. The app switches to the device mode. Edit -- Vizio edit -- add/repair keys -- channel repair -- Filter instructions from cloud data. You can test different channel commands to see if they are available.