"The films we made were aimed at the Head of Department at the BBC, who was about 57 at the time, and she was a nice lady called Ursula Eason, and very humane and ordinary, and full of fun. If we had studied children in any way, apart from having children, we wouldn't necessarily have succeeded in selling the films, because the woman at the BBC had fairly clear opinions of what she would find acceptable, and these were conditioned in some ways by the fact she was a middle-aged, English (well, Irish actually, if you go all the way back) lady, who was brought up as I was on Beatrix Potter, A. A. Milne, and Lewis Carroll, and all the sort of 'Founding Fathers' of English Tweeness."