I love any programme from DA, but perhaps it is the BBC we should appreciate most of all. Over the years they have not just shown, but have made many great nature and science programmes. Which is more than can be said for its UK competitors, especially ITV, where the only time you get a nature programme from them is when it is celebrity led, e.g. Cloones, Fry or O'Grady. Sadly the days of ITV doing any 'serious' television science and nature, or documentary/factual are long past.