Last in the series in which Huw Edwards uncovers the real-life history behind the stories of favourite operas. 4: Carmen. Bizet's masterpiece is probably the best known of all operas. Full of tunes everybody recognises, it is sometimes so familiar, we forget the controversies of class, race and genderwhich make upthis most moving of stories. This episode explores the real history of Carmen, from its disastrous first performance to the phenomenal success its composer dreamed of but never Saw. Producer Martin Gifford