This is an easy 5 star for anyone interested in evolution, social history or the environment, Andrew Marr does an excellent job. There are 3 episodes.
1. This is the introduction; it covers parts of Darwin's voyage on the Beagle. It gives the reaction to his book by the public and especially religious people. It covers the Scopes trial in America. It also has an equation to show how altruism can be compatible with evolution.
2. This covers how "survival of the fittest" led to eugenics in the UK (first formulated by Sir Francis Galton in 1883, drawing on the recent work of his half-cousin Charles Darwin), USA and Germany, eventually leading to the holocaust; this lead to the universal declaration of human rights in 1948. It goes on to show how DNA testing can be use to prevent genetic defects proliferating (Tay-Sachs disease).
3. There have been five mass extinctions, we are now in the sixth and it is caused by man. The science of ecology was based on Darwin's theory, and Wallace was the first to realise it. He describes the peppered moth and natural section. It shows how the use of DDT and Rachel Carson's book "Silent Spring" lead to the rise of the modern environmental movement. He goes on to talk about how we are destroying the planet, global warming causing coral bleaching; the destruction of the rainforest and extinction. Darwin's last book was about worms and massively outsold Origin of Species. He ends with a call to preserve our environment.
There is much more detail in the DVD itself.