When did the bombing event that was marked in a special program of The Late Late Tribute Shows six months later occur?
The Late Late Tribute Shows:  In 1999, there was a special programme marking six months since the Omagh bombing and there was also a special show in the wake of 9/11. Omagh bombing: The Omagh bombing was a car bombing that took place on 15 August 1998 in Omagh, County Tyrone, Northern Ireland.
15 August 1998