How did Peter Falk come to be at the remote north-western tip of South Island, drawing heifers in a period suit? It's a long story. But the short answer is that he's God. OK, he's playing God. All right, he's playing someone called Theo, which means God in ancient Greek. In The Lost World, BBC1's big Christmas entertainment adapted from Sir Arthur Conan Doyle's Boy's Own caper, Father Theo is a priest who by fair means or foul seeks to discourage a group of explorers from visiting a plateau where dinosaurs are rumoured to live. He takes the Old Testament very seriously, and tends to think that the stench of Darwinism can only be bad news for God.