Dan Walker and Helen Skelton travel the Pennine mountains: the 'backbone of Britain'.
Helen Skelton
Self
Dan Walker
Top Gear
1978
Deadly Women
2005
MegaStructures
2004
How Do They Do It?
2006
Biography
1987
Doctor Who Confidential
Horizon
1964
Mysteries at the Museum
2010
American Experience
1988
30 for 30
2009
The F Word
History 101
2020