He drew wider audiences on television and radio, and also released a number of smash hit songs, but continued touring right up until previous year.
Imagine... Ingrid Bergman in her Own Words will now be shown on 26th March.
Sir Ken Dodd's full name is Kenneth Arthur Dodd and he was born on November 8, 1927.
He wrote: "RIP Sir Ken Dodd".
Irish comedian Dara O Briain remembered seeing Sir Ken at one of his "incredible five hour shows". One of the all time greats.
In our interview Sir Ken - who opened the new Embassy Theatre in August 2000 - recalled having lot of fun in Skegness filming sketches for his television shows in the dunes.
Comedian Gary Delaney made reference to Sir Ken's long stand-up shows as he paid tribute on Twitter.
The funnyman had secretly married his long-term partner, Anne Jones of 40 years just two at the home in Liverpool' where he spent his entire life.
TV personality Claire Sweeney, a fellow Liverpudlian, shared photos of the star's 90th birthday party on Twitter.
"People would be standing up to get the last bus and he would start talking to them as they were putting their coats on". He was an education to watch and, afterwards, at 1.30 am, he had beers with me in the dressing room and talked showbiz. "What a legend, happiness was your greatest gift to us". A privilege, and a loss.
"Thanks to them I am delighted to report that I am making steady progress back to good health and can't wait to entertain everyone once again".
The mayor of Liverpool, Joe Anderson, the Liverpool Council and famed author, actor and comedian, David Williams, also posted their condolences to Sir Ken Dodd's wife and family.
Publicist Robert Holmes said Dodd died Sunday at his Liverpool home - the same house where he was born in 1927. It was around this time that he became interested in show business, after seeing an advert, in a comic, that read: "Fool your teachers, amaze your friends - send 6d in stamps and become a ventriloquist!"