Just for a moment, I want you to put yourself in the role of the viewer and imagine that you have switched on a program marketed as a factual special. Now imagine that what you are presented with is a show about dragons - how they could possibly fly, the science behind their fire-breathing ways, the composition of their armor-like skin. But, you may ask, how can a non-fiction program be based on creatures that have only ever existed in fairytales?

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