Denis Norden, the former host of It'll Be Alright on the Night and comedy writer, has died aged 96.
The television presenter passed away on Wednesday morning after spending "many weeks" at the Royal Free Hospital in north London.
Armed with his trademark clipboard, Mr Norden fronted the ITV bloopers show for 29 years from 1977 until his retirement in 2006.
After stepping down from television presenting, he gave a lot of attention to raising awareness of macular disease, a degenerative eye condition from which he suffered, and became a patron of the Macular Society.
Mr Norden's children, Nick and Maggie Norden, said in a statement: "We'd like to say a huge thank you to all the dedicated staff and doctors who have looked after him - with much devotion.
"A wonderful dad, a loving grandfather and great great-grandfather - he gave his laughter-mongering to so many. He will be in our hearts forever."
Born in Hackney, east London, in February 1922, Mr Norden trained as a manager for the Hyams brothers, owners of impressive London picture palaces.
He served in the RAF in the Second World War with such other future famous names as Eric Sykes and Bill Fraser, and wrote shows to entertain the troops - and get off guard duty.
Mr Norden met future writing partner Frank Muir in 1947 and they created Take It From Here, the radio hit broadcast by the BBC between 1948 and 1960 starring Jimmy Edwards, Joy Nichols, June Whitfield and Dick Bentley.
His small screen career kicked off in 1951 with Here's Television, the BBC sketch show starring Sidney James and Ian Carmichael.
Mr Norden and Mr Muir amicably parted ways in 1964 after a series of successes and he wrote material for The Frost Report, hosted by the late Sir David Frost.
He became established as a television presenter in the 1970s, hosting Looks Familiar, the nostalgic chat show, before It'll be Alright On The Night hit the airwaves in 1977.
Its popularity saw ITV commission spin-off Denis Norden's Laughter File, with both running until his retirement.
Tributes: 'He made me laugh for 30 years'
A host of comedians and television presenters have been paying tribute to Mr Norden.
BBC Breakfast presenter Dan Walker spoke of his sadness at the death of "Lord of the Clipboard Denis Norden".
Sad news about the death of Lord of the Clipboard Denis Norden. In the age of youtube and social media it's hard to explain how exciting it was to watch 'It'll Be Alright On The Night'.— Dan Walker (@mrdanwalker) September 19, 2018
Comedian Keith Lemon, whose real name is Leigh Francis, shared a picture of the host on Instagram.
Quizmania host Greg Scott described Mr Norden as "the loveliest human being".
Just heard about Denis Norden. The gentlest of gentlemen. The kindest soul. The loveliest human being. Met and worked with him on Countdown a number of times and was always an utter joy to be around. A very sad start to the day.— Greg Scott (@GregScottTV) September 19, 2018
Sleep well, Sir.
Piers Morgan, the broadcaster, said he had "made me laugh for 30 years".
RIP Denis Norden, 96.— Piers Morgan (@piersmorgan) September 19, 2018
A wonderfully amusing man who
made me laugh for 30 years. Thank you Denis. pic.twitter.com/YeMFi4saWG
Rory Bremner, the comedian, described Mr Norden as a "giant in every sense".
RIP the great Denis Norden. One of the finest (and tallest) writers of a great generation. Doyen, gentleman, giant in every sense.— Rory Bremner (@rorybremner) September 19, 2018
Hit bloopers show was born over a cup of tea
Mr Norden told in 2005 of how It'll Be Alright on the Night came to be.
He and a producer named Paul Smith came up with the idea for the programme over a cup of tea in the London Weekend Television canteen and, there and then, phoned Michael Grade, head of entertainment, to make an appointment to suggest it as a possibility.
"Come up now," Grade told them. When Mr Norden said: "What do you think about an entire programme of out-takes?" Grade replied: "How soon can you let me have it?"
Mr Norden said: "We left his office half-an-hour later with a recording date and a budget. Michael had even suggested a title which, Paul and I agreed on the way down, wasn't that hot, but seeing he had been so accommodating, it might be best to go with it. We went with it for 29 years."