BBC director-general Tony Hall has described the death of Sir David Frost as "amazingly sad."
"David was one of the most influential people in broadcasting," he said today.
"When you look at David you realise what a huge figure he is for the BBC, for broadcasting around the world."
Admirers of Sir David Frost today hailed his "extraordinary" life after "one of the giants of tv" suddenly died from a heart attack.
A look at some of the famous faces interviewed by veteran broadcaster Sir David Frost, who has died of a heart attack, at the age of 74.