The Royal Rumble is a professional wrestling pay-per-view event, produced every January by professional wrestling promotion WWE. The initial event, however, was not a pay-per-view but was originally shown as a television special on USA Network. The following year's event was the first Royal Rumble pay-per-view event. The first Royal Rumble match was won by Jim Duggan. The event's main feature is a take on a Battle Royal match, entitled the Royal Rumble. The pay-per-view is a part of WWE's "Big Four", along with WrestleMania, SummerSlam, and Survivor Series. The Royal Rumble has been classified as being one of WWE's most popular pay-per-view events.