Why not questions on the fly, an everyday event until judgment day. A few questions to the ones running from their opposition and a few from the informed viewers that are answered by all parties. In the normal way of doing things there are ads that take up a few hours for the event and the actual time spend is pennies on the dollar. Do it the face-book way and a reply could be made at 3PM or 3AM depending on the poster. Spontaneity is always more humerus so the changeover might be high before the finish line is reached.