This is one of the finest televised dramas I have ever seen. I was watching it on the TV channel that brings us wonderful British shows, Part 1, knowing that Part 2 would be aired the next week. About and hour into the telecast, the TV went dark and I looked about and there were no lights anywhere. We were undergoing a power outage. Determined to see the entire production, I ordered the DVD which I then did as gifts for film aficionados. I had no prior introduction to the work of David Tennant but was so impressed. Learning of his amazing career is a pleasure. He admires Derek Jacobi, an actor long admired in the States beginning with "I, Claudius." I was privileged to have drinks with Sir Derek in Stratford in the autumn of 1982 following his stellar performance in "The Tempest." He continues turning out marvelous performances.