Assertion: royal rumble | /r/HasProperty | shown on pay-per-view
Facets:
value: since 1989
type: TEMPORAL
Source sentences:
text: After the initial event was broadcast as a television special on USA Network, the Royal Rumble has been shown on pay-per-view and is one of WWE's "Big Four", along with WrestleMania, SummerSlam, and Survivor Series.
text: Since 1988, the Royal Rumble has been an annual January event held by WWE, shown on pay-per-view since 1989.