BBC Four Tuesday

Ben Garrod tests a pit viper's heat sensors, seeing if it will strike at a warm ping-pong ball. Plus, how the leaf-nosed bat uses its skin to traverse a forest

Richard Holmes recalls the night of December 29, 1940, when St Paul's Cathedral and much of London suffered heavy bombing

Tom and Barbara's difficulties are for once dwarfed by those of Jerry, who has to choose between obeying his boss or attending Margo's production of The Sound of Music

A conflict of interests arises at the Ministry of Administrative Affairs when Hacker introduces controversial cost-cutting measures

The historian recounts the story behind a series of Mark Rothko paintings commissioned in 1958 for the Four Seasons restaurant in New York's Seagram Building

A young woman's quest to find out more about her father, who was one of the 8,000 Bosnian Muslims killed in the 1995 Srebrenica massacre

A look at the 1971 watershed football tournament in Mexico City at the Azteca stadium, with contributions from the female players who took part

Ben Garrod tests a pit viper's heat sensors, seeing if it will strike at a warm ping-pong ball. Plus, how the leaf-nosed bat uses its skin to traverse a forest

Richard Holmes recalls the night of December 29, 1940, when St Paul's Cathedral and much of London suffered heavy bombing

A profile of Hitler's architect, armaments minister and friend Albert Speer, questioning whether his admission of guilt at the Nuremberg trials was born of genuine remorse

The historian recounts the story behind a series of Mark Rothko paintings commissioned in 1958 for the Four Seasons restaurant in New York's Seagram Building