Peter Firmin, the co-creator of Clangers, Bagpuss and Basil Brush, has died at the age of 89, it has been confirmed.
Mr Firmin also helped create other classic children's shows such as Ivor the Engine and Noggin the Nog.
He died at his home in Kent after a short illness, production company Coolabi said.
Mr Firmin received the Bafta Lifetime Achievement Award in 2014.
He leaves behind his wife Joan, six daughters and numerous grandchildren and great grandchildren.
A statement from Coolabi said: "During a career spanning over six decades Peter worked with great skill in a remarkably wide variety of creative disciplines as a fine artist, craftsman and author.
"Of all his work he will probably be most fondly remembered for the characters he co-created and made."
Mr Firmin worked with Ivan Owen to create Basil Brush; and Oliver Postgate on Bagpuss, Clangers, Noggin the Nog and Pogles Wood.
In 1999, Bagpuss was voted the most popular BBC children's programme ever made.
The Coolabis statement said: "Peter continued to work with great enthusiasm on creative projects right up until the beginning of 2018, most notably on a new series of Clangers, which won a Bafta in 2015."