Even though the vast majority of my work was outside television, the amount of creation and inventing that went into the TV shows was non stop and, unknown to me, a great strain.

I don't get many hecklers now but answering them is an art form in itself.

When people say to me don't the years go fast I have to be honest and say that whereas I don't realise where they go in the long term, I pack so much into a year it seems to take forever.