"All those around her never measure up to that at any point.
"Her own family has never measured up to that.
"Charles never measured up to that."
Prince Charles 'never measured up' to Queen's sense of duty - but William has, says expert (Image: GETTY)
Mr Irving said: 'All those around her never measure up to that at any point.' (Image: SKY NEWS AUSTRALIA)
He added: "I think you have to go to William to find somebody who seems to have the same sense of what it means."
Narrator Jane Whittenshaw gave further insight into the Queen's impact on Britain and the monarchy.