Sir David Frost: Watch Veteran BBC and Sky Broadcaster's Top 5 Interviews

David Frost has been remembered at a memorial service at Westminster Abbey.

Figures from politics and entertainment were among about 2,000 guests at the ceremony, which was attended by Sir David's widow, Lady Carina Fitzalan-Howard, and his three sons.

The Dean of Westminster led the service, which also saw the Prince of Wales lay a wreath at a memorial stone in Poets' Corner.

Frost died at the age of 74 after a heart attack while aboard a cruise ship on which he was making a speech in September 2013.

Known for his disarming interview technique, Frost is best remembered for his interview with disgraced US President Richard Nixon.

But as well as statesmen, Frost also interviewed sports figures, movie stars and musicians.

Here are his top five most memorable interviews.

)

Richard Nixon

Frost partly funded the 1977 interview in which he extricated an apology from former US President Richard Nixon over the Watergate scandal.

Nixon had all but disappeared from public life after he resigned as Commander in Chief in 1974, but was coaxed back into the limelight by Nixon and the lure of making money.

After 11 laregely defensive interviews, Nixon finally relented and said: "Yes, I let the American people down. And I'll have to carry the burden the rest of my life."

Margaret Thatcher

During what was supposed to be an interview to soften the public's perception of then-Prime Minister Margaret Thatcher, Frost brought up the sinking of Argentine warship the Belgrano.

Controversy had raged over whether the Belgrano had been heading back to its port at the time of the sinking and if attacking it had been legal.

What started as a friendly interview became more heated and Frost and Thatcher's relationship was tarnished for many months afterwards as a result of the broadcaster's interrogation.

Brian Clough

Football manager Brian Clough had just been sacked by Leeds United. The famously verbose Clough discussed topics including football management, how he lived in fear of the sack and what he thought about politics.

Ironically, actor Michael Sheen played both Frost and Clough in separate films about their lives.

Muhammad Ali

Frost became friends with Ali, his sporting hero, after they crossed paths 30 times in front of the camera.

Their most famous encounter came in 1974 as Ali prepared to take on world heavyweight champion George Foreman in what became known as the Rumble in the Jungle.

But as the two became friends they discussed family as well as religion.

Tony Blair

Tony Blair said in his autobiography that Forst was one of the best interviewers because you would end up saying something you were not probably meant to.

During this interview with Arabian news channel Al Jazeera, Blair all but admits that the Iraq war was a disaster.