The three-hour coverage of the celebrations which took place in Flanders, Belgium saw Scottish presenter Kirsty Young hosting the events at Menin Gate in Ypres.
Prince William and Duchess of Cambridge joined Prime Minister Theresa May to pay their respects to the thousands of young men who lost their lives, during one of the bloodiest battles of the First World War.
But as the soldiers lined up, and A Cappella choirs sang poignant music in tandem with the laying of the wreaths, viewers instantly took to Twitter to express their upset.
“@bigphilcampion just watched tribute on BBC about Passchendaele bl***y heart breaking lump in throat tears in eyes God bless them,” one person posted.
Viewers were in tears at the commemorations for the Battle of Passchendaele centenary
Prince William and the Duchess of Cambridge arrived at the start of the programme
The moving tributes had viewers gripped
“Moved to tears by the Passchendaele commemoration at Ypres on BBC
Another admitted that they were expecting to suffer watching the special, saying: “Moved to tears by the Passchendaele commemoration at Ypres on BBC! After today and then reviewing pics taken I was already a wreck tbh.”
A third agreed: “I just put on the Passchendaele special on BBC2 like five minutes ago and I am already in tears.”
The coverage featured a dedicated event to the memory of the horrific events of battle, wherein Dame Helen Mirren narrated the timeline as well as detailing some of the men who gallantly fought in the War, along with segments of plays, to a rapt audience on the streets surrounding the Grote Markt (the Market Square).
One viewer also shared their annoyance that the programme wasn’t trending on Twitter, saying: “Extremely annoying that the excellent World War One Remembered isn't trending but Love sodding Island is.”
First World War Centenary
Tue, August 5, 2014
Pictures from the First World War Centenary events from around the world
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Members of the Great War Society living history group dressed as 4th Battalion the Middlesex Regiment stand under a shower of a million poppy flowers
Dame Helen Mirren was mesmerising in her role of narrator on the special
Before the final theatre piece commenced, Prince William gave a speech to honour the half a million Allied and German soldiers that were killed, wounded or went missing during the three months of fighting.
He said that Britain and Belgium ”stand together… in remembrance of that sacrifice".
The BBC will continue to cover the commemorations during the official anniversary in Ypres from 11am tomorrow.