BBC Four Monday

Part one of two. Michael Portillo explores Australia by train, beginning by riding the Ghan Railway from Port Augusta in the south to Darwin on the north coast

Robbie Cumming battles his way through blanket weed on the Shropshire Union Canal and discovers industrial secrets in Audlem, Cheshire

In this edition, Simon Schama explores the nature of Arcadia, describing it as 'a pretty lie', beneath which lies wildness

Insight into the rebuilding of New York following the events of September 11, examining the future of Ground Zero

Robert Robinson referees as Frank Muir, Hannah Gordon and Barry Norman face Patrick Campbell, Glenys Roberts and Paul Daneman in a duel of words and wit

Joseph Cooper invites listeners to match their musical wits against Joyce Grenfell, Robin Ray and David Attenborough. With guest musician Andreej Panufnik

The story of how the Hubble space telescope has revealed the awe and wonder of the universe and how daring astronauts have risked their lives to keep it working

Cameras in space show that the surface of the Earth is changing at a rapid pace as cities grow, forests disappear and glaciers melt

James Fox journeys through six different landscapes across Britain, meeting artists whose work explores the human relationship with the natural world

Part one of two. Michael Portillo explores Australia by train, beginning by riding the Ghan Railway from Port Augusta in the south to Darwin on the north coast

Robbie Cumming battles his way through blanket weed on the Shropshire Union Canal and discovers industrial secrets in Audlem, Cheshire

Cameras in space show that the surface of the Earth is changing at a rapid pace as cities grow, forests disappear and glaciers melt

The story of how the Hubble space telescope has revealed the awe and wonder of the universe and how daring astronauts have risked their lives to keep it working