A computerized audio or video signal control system controlled by an announcer and having a display of the available signal sources and scheduled events which can be activated, mixed, faded and cued by the announcer in the scheduled order or in an order the announcer desires. The control system provides the correlation between the displayed source or event name, the devices necessary to air the source or event and the routing necessary to air the event or source and then activates the proper devices to perform the task. The control system additionally logs the events actually activated in order.