THE APCH CTLRS VECTORS AN ACR ACFT THROUGH SPECIAL USE AIRSPACE FOR AN AIRSHOW DUE TO NOT BEING NOTIFIED OF THE EFFECTIVE TIME OF THE AIRSHOW WAIVER.

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TWO PRIVATELY OWNED SINGLE ENG ACFT DEPARTED NORTH LITTLE ROCK ARPT VFR REQUESTING IFR CLRNCS. LITTLE ROCK AIR FORCE BASE TWR IS LOCATED APPROX 7 MI NE OF THE NORTH LITTLE ROCK ARPT. AFTER COORDINATING A TRANSITION OF THE TWR'S AIRSPACE (SURFACE OF 2000 FT WITHIN 5 NM RADIUS); THE 2 ACFT WERE GIVEN THEIR IFR CLRNCS. AT APPROX THE SAME TIME THE ABOVE MENTIONED ACR WAS OVERFLYING THE AIR FORCE BASE DURING A CLBOUT NBOUND THROUGH APPROX 8500 FT. A PHONE CALL FROM THE AIR FORCE BASE TO LITTLE ROCK APCH CTL INFORMED APCH CTL RESTR AIRSPACE WAS IN EFFECT FROM THE SURFACE TO 15000 FT WITHIN A 5 NM RADIUS OF THE AIR FORCE BASE. APCH CTL CALLED FLT SVC TO CONFIRM A NOTAM HAD BEEN ISSUED CONCERNING THE RESTR AIRSPACE. THE NOTAM WAS IN EFFECT BEGINNING AT XA00 LCL. APCH CTL PERSONNEL WERE TOLD IT WENT INTO EFFECT AT XD00 LCL IN CONJUNCTION WITH THE AIRSHOW START TIME. SAFETY WAS COMPROMISED. LITTLE ROCK APCH CTL CTLS THE AIRSPACE AROUND AND ABOVE THE AIR FORCE BASE. SOMEONE FAILED TO NOTIFY THE RADAR CTLRS OF THE EFFECTIVE TIMES OF THE RESTR AIRSPACE.