I recently discovered a treasure trove of documentaries on art produced by the BBC. Subjects range from Michelangelo’s “David” to Sandro Botticelli’s “La Primavera” to Piero della Francesca’s “The Resurrection.” The documentaries are presented in 26 episodes and are part of a series that aired on the British television network.

Making my way through them, the one that has impressed me the most is Episode 20 on Leonardo da Vinci’s “The Last Supper.” The documentary reveals the creation of the masterpiece between 1495 and 1498, its almost immediate deterioration and the many restorations it’s undergone throughout the centuries.