BBC Four HD Wednesday

Liz McIvor examines the Manchester Ship Canal. Hailed as the greatest engineering feat of the Victorian age, it was built by navvies widely regarded as troublesome outsiders

Poet laureate Simon Armitage takes a coastal walk along Yorkshire's enchanting and historic frontier with the North Sea, from Ravenscar to Robin's Hood's Bay

Chris Packham introduces a documentary from the BBC archive that takes a look at the worst British winter of the 20th century, and also explores how it affected wildlife

Documentary about the work and legacy of mathematician and Second World War cryptanalyst Gordon Welchman, whose later research led directly to today's secret state surveillance

As Henchard's empire crumbles, Lucetta and Farfrae compound his humiliation. Starring Alan Bates

Donald Farfrae has taken over as the mayor of Casterbridge. Despite his decline, Henchard returns Lucetta's love letters at her request

Lucetta falls victim to a malicious trick and Henchard is reconciled with Elizabeth-Jane, but it may be short-lived

Liz McIvor examines the Manchester Ship Canal. Hailed as the greatest engineering feat of the Victorian age, it was built by navvies widely regarded as troublesome outsiders

Documentary about the work and legacy of mathematician and Second World War cryptanalyst Gordon Welchman, whose later research led directly to today's secret state surveillance

Chris Packham introduces a documentary from the BBC archive that takes a look at the worst British winter of the 20th century, and also explores how it affected wildlife

Poet laureate Simon Armitage takes a coastal walk along Yorkshire's enchanting and historic frontier with the North Sea, from Ravenscar to Robin's Hood's Bay