The BBC has the obligation to think big. And at the moment, that clarion call sounds an uncertain note to me.

Over the last two years, I have been able to comb through The Prince's archives. I have been free to read his journals, diaries and many thousands of the letters.

Not every programme dealing with issues of global significance has to be fronted by last weeks winner of Have I Got News For You-but I suppose you might be wrong.

The BBC has the obligation to think big. And at the moment, that clarion call sounds an uncertain note to me.

Ever more people are alert to the challenge of global poverty and global warming. We know that solutions are at hand. We will not sleepwalk into catastrophe. We have the capacity to forsee and forestall, and I believe we will find the will to act

Programme names have been changed, and we have Andrew Neil saying he won't be using long words.

I honestly believe that TV generally is obsessed with the ratings battle to the point of cutting its own throat.