He has written and presented some 30 television documentaries, including The Fall of Constantinople, Napoleon's Hundred Days, Cortés and Montezuma, The Antiquities of Turkey, The Gates of Asia, Maximilian of Mexico, Toussaint l'Ouverture of Haiti, The Knights of Malta, The Treasure Houses of Britain, and The Death of the Prince Imperial in the Zulu War.
Han har skrevet og præsenteret omkring 30 fjernsynsdokumentarer, herunder The Fall of Constantinople, Napoleon's Hundred Days, Cortés og Montezuma, The Antiquities of Turkey, The Gates of Asia, Maximilian of Mexico, Toussaint L'Ouverture of Haiti, The Knights of Malta og The Death of the Prince Imperial in the Zulu War.