Correct answer is Wimbledon, amazingly first broadcast live in 1937!
The first Grand National not broadcast live until 1960, which was very late really. 1954 World Cup in Switzerland was first live televised tournament. And first live British GP was broadcast in 1965.
I would have assumed they were never broadcast live until after they were promoted to the First Division in 1986.
You can do better than that 
I remember taping it
What event was the subject of the first live commentary of a field sport broadcast in Europe?
All Ireland final?
No but warm.
Munster final?
All Ireland semi final between Kilkenny and Galway. Commentator was P D Mehigan aka Carbery.
Kilkenny won 6-2 to 5-1
Wasn’t there a girl’s school on Eccles Street? Gone now
I have them all except one in the diffney quiz in the Holly Bough
NHB, E 1822
Anybody??
May or may not have a Cork slant
Figured out 11
the house of the 7 gables by Nathaniel Hawthorne
National Health Board, established 1822.
Have you anything to back that up?
A quick Google shows nothing??
No I completely made it up to see if you’d bite 
I was thinking national hospital for the blind…
Something related to Holly Bough?
Holly Bough is since 1897
1822 may not be a year.
