If you've got nothing better to do today, I highly suggest checking out the RedBull AirRace. Basically, it is an aerobatic flying contest over the San Francisco Bay. There are several inflated pylons that the planes must do different maneuvers through, such as flying sideways. I have seen the commercials and it looks great. It will be webcast at 3:45PM EST for those interested.
Everyone knows what aerobatic flying is. Most people have also seen a skiing slalom and are familiar with auto racing. Air Race is, to a certain extent, a combination of these three disciplines.