Every comedian faces the constant challenge of making us laugh, knowing that they're only as good as their last gag, sketch or stunt.
One Ronnie: on BBC Breakfast
And as what we find funny changes, then so does the need for the comic to create new ways of entertaining us.
He's still probably best remembered for his 15-year stint as one half of The Two Ronnies.
Ronnie Corbett came in to the Breakfast studio this morning
The success of the Two Ronnies rested on its mix of character sketches, often involving wordplay and songs, and spoof news reports combined with long winded jokes or anecdotes delivered from Corbett's high chair.
Their were also performances from singers including Barbara Dickson and Elaine Paige.
The Two Ronnies' act was unusual, in that they didn't fall into predictable roles of comedian and straight man.
Both told jokes - and both wrote sketches for the show.
A regular feature of the BBC One Saturday peak time audience during the Seventies, it pulled in millions of viewers.
Their hardware shop sketch - where Ronnie Corbett asks for fork handles and gets four candles - was recently voted one of the nation's favourite comedy sketches.
Still living at home, at 41: Corbett in Sorry!
Both Corbett and Barker continued to work on their own solo projects which overlapped with the Two Ronnies.
Barker went on to appear as the main characters in Open All Hours (Arkwright) and prison comedy Porridge (Fletcher).
Meanwhile Corbett took on his own solo roles in several comedies including the BBC's Sorry! cast as Timothy Lumsden, a 41-year-old librarian still tied to his mother's apron strings.
The show ran from 1981 to 1988.
The Two Ronnies came to an end in 1987 and Ronnie Barker has only made a handful of television appearances since, preferring to concentrate on his Oxfordshire Antique business.
At the age of 74, Ronnie Corbett has written and produced his first ever stand up show and is set to entertain a whole new generation of Britons.
There's going to be a brand new series of The Two Ronnies on BBC One, although it's not been confirmed when this will be transmitted.
Corbett is also set to star in 'Home' a new comedy with Rob Brydon and David Walliams.
Ronnie Corbett Live (certificate 12) is released by Universal