Sky Box Office launched on 16 March 1996 on Sky Analogue. At the time it carried mainly sporting events, such as major boxing fights. The first of these was Frank Bruno's WBC World Heavyweight Championship defence against Mike Tyson. Initially events were ordered by telephone, either on the day of broadcast for £14.95 or in advance at a reduced price of £9.99. Ordering an event charged the viewer and then the subscriber's VideoCrypt viewing card would be activated over the air, enabling the viewing of the broadcast. The charge would be levied unless the viewer cancelled prior to broadcast, or returned the viewing card as proof that the event hadn't been watched. On some occasions, Box Office events would be broadcast on other Sky channels, such as Sky Sports 3.