Question: When did the bombing event that was marked in a special program of The Late Late Tribute Shows six months later occur?

<P0-S0> The Late Late Tribute Shows are a series of special editions of the world's longest-running chat show, "The Late Late Show" broadcast on RTÉ One in Ireland each Friday evening. <P0-S1>  Over decades the shows has featured a broad range of well-known public figures including Micheál Mac Liammóir, Joe Dolan, Maureen Potter, Michael O'Hehir, Brian Lenihan, Jimmy Magee, Christy Moore, Mike Murphy and Paul McGrath. <P0-S2>  There were also tribute shows celebrating Irish music and a "Late Late Show" special devoted to Irish comedians. <P0-S3>  Individual bands and musicians to have been given a tribute show include The Clancy Brothers and Tommy Makem, The Chieftains, The Dubliners, U2, Westlife and, most recently, Ronnie Drew himself. <P0-S4>  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. <SEP> <P1-S0> The Roll on the Red Tour was a concert tour by American rock band Red Hot Chili Peppers. <P1-S1>  The tour followed the band's hugely successful "By the Way tour". <P1-S2>  During this tour the band recorded their first live album, Live in Hyde Park. <P1-S3>  Near the tour's end, the dates mainly consisted of benefit and tribute shows including the Bridge School Benefit and a tribute show to longtime friend, Johnny Ramone. <P1-S4>  The band's performance was released two years later on DVD as "Too Tough to Die: A Tribute to Johnny Ramone". <P1-S5>  Ramone, who was too sick to attend the tribute (although show host, Rob Zombie called him during the event), would pass away a three days after the tribute show. <P1-S6>  John Frusciante was among many famous friends and family to attend his funeral and memorial celebration. <P1-S7>  On March 17, 2015, the band released "" a free MP3 download of the entire show through their website. <SEP> <P2-S0>  It was carried out by a group calling themselves the Real Irish Republican Army, a Provisional Irish Republican Army (IRA) splinter group who opposed the IRA's ceasefire and the Good Friday Agreement. <P2-S1> The Omagh bombing was a car bombing that took place on 15 August 1998 in Omagh, County Tyrone, Northern Ireland. <P2-S2>  The bombing killed 29 people (including a woman pregnant with twins) as well as injuring some 220 others, a death toll even higher than that of any single incident during what were considered 'the Troubles' (1968-10 April 1998). <P2-S3>  Telephoned warnings had been sent about 40 minutes beforehand, but were claimed to be inaccurate and police had inadvertently moved people towards the bomb. <SEP> <P3-S0> The ABC Sunday Night Movie is a television program that aired on Sunday nights, first for a brief time in 1962 under the title "Hollywood Special" (although "Time" magazine lists this version as "The Sunday Night Movie") to supposedly replace an open time slot for a cancelled TV show, "Bus Stop", which was cancelled after March 1962. <P3-S1>  It then began airing regularly under its more commonly known title from late 1964 to 1998, on ABC. <P3-S2>  Since 2004, it has aired sporadically as a special program, now titled the "ABC Sunday Movie of the Week", though as of the 2011-12 television season, the only films in this timeslot were aired under the "Hallmark Hall of Fame" banner, which transferred to ABC in that season. <P3-S3>  However, in 2014, The Hallmark Hall of Fame moved exclusively to cable on the Hallmark Channel, and as a result, said program is no longer on broadcast television in any form (including ABC) for good. <P3-S4>  As a result of this, the Sunday Night Movie is now exclusively relegated to 2 special holiday movies, "The Sound of Music" every holiday season and "The Ten Commandments" every Easter.