Saturday 4 September
When much of New York's communications network failed following the September 11 attack on the World Trade Center, up stepped the radio hams of the Big Apple to co-ordinate the search and rescue effort. Unsung Heroes celebrates the huge contribution made by these radio obsessives, using interviews and excerpts from radio transmissions.
BBC Radio 4, 10.30am
Working The Thames
A journey down the Thames on a huge container ship helps reveal the working history the river.
Discovery Channel, 6pm
Chris Barrie's Massive Engines
Engines enthusiast Chris Barrie looks at the history of diggers, including one particularly awesome beast that weighs more than 1,000 double-decker buses.
Discovery Channel, 6.30pm
First time on ITV, but who could ever accuse Parky of having an imagination when it comes to choosing the guests. Yes, it's Billy Connolly, folks.
ITV, 9.45pm Sunday
We Built This City: New York
Computer graphics show how the city of New York was created.
Discovery Channel, 9pm
Zero Hour: Last Hour Of Flight 11
A fascinating, but probably rather chilling, minute by minute account of how one of the jets crashed into the Twin Towers.
First time on Discovery.
Discovery Channel, 10pm Monday
Extreme Engineering: Bridging
The Bering Strait Looks at plans to link North America with Asia. Bold, yes, but when did an engineer ever say no - except to an architect of course.
Discovery Channel, 9am Wednesday
Debates what the military will look like in 20 years. I suppose much will depend on the government in power. Tony Blair's New Labour, for instance, inspires the armed forces by sending them into conflicts some people deem illegal, or that many just don't want, and repays the favour by making those left at home redundant. That's if the recently proposed military cuts are anything to go by.
BBC Radio 4, 8pm Thursday
Obninsk in Russia is the oldest working nuclear power station in the world: Olkilto 3 in Finland is the newest. Susie Emmett visits both and reports on the state of the nuclear industry.
BBC World Service, 10.05am
Quentin Cooper visits the British Association Festival of Science in Exeter as the country's top scientists present the latest industry developments.
BBC Radio 4, 4.30pm
Britain: Battle Of The Boyne Peter Snow and is his son Dan look back on a pivotal moment in Irish history.
BBC2, 9pm If you know of events, exhibitions, books, programmes or websites that ought to be included in Foresight, contact Karl Thompson, tel (020) 7505 6682, e-mail karl. thompson@ construct. emap. com