In an interview on Radio 4, he said: “I burnt them in a bonfire in my garden. I'd had them for some time after the transmissions had stopped.
“And various people had said "oh they're old fashioned", and they always were old fashioned actually. They were old fashioned from the word go.
“They had been used an awful lot you know so I burnt them, together with the scenery.”
He added: “A puppet is an actor you see, and as an actor he only exists as he is performing. After that he's done his job and therefore the actual figure is redundant.”