A method, device and system are set forth for controlling a video switching device (VSD) configured to display video from multiple video streams at a video display. Where video signals are received which are unrecognized by the VSD a tuner is coupled to the VSD to control the same to extract video primitives adjust the configuration data so that the video stream will be properly displayed at the video display. In another embodiment the tuner may command the VSD to display a diagnostic dashboard for the gaming machine and its components and network connections.