An event venue with a performance area (e.g., a stage, a sport field) and an eventgoer area (e.g., a stadium seating section) may include beacons and cameras throughout the performance area. The beacons and cameras may each record event occurrence data (e.g., audiovisual data) of particular occurrences (e.g., sport goals, songs played) during an event (e.g., sports game, concert) at the event venue. Other data, such as sports injury data and sports player replacement data, may also be gathered before or during the event. The beacons and cameras may send the event occurrence data and the other data to a transmission system. The transmission system may convert the event occurrence data to a transmittable format and may then output it through one or more local wireless transmitters. Eventgoers mobile devices in the transmission zones of these transmitters may then receive the data.