Upcoming episodes, programme details and where to watch over the next seven days. All times are UK time.
St Bees to Maryport: Michael Portillo embarks on the last leg of his railway journey around the north-west coast of England, visiting the childhood home of William Wordsworth.
Bangor to Belfast: Michael Portillo makes his way from Bangor to Belfast, along the way enjoying live music on a boat and visiting the parliament building at Stormont.
Lee-on-the-Solent to Bosham: Michael Portillo explores Lee on the Solent in Hampshire, the maritime city of Portsmouth, and Chichester's vast, natural harbour.
Ballarena to Giant's Causeway: Michael Portillo heads to Northern Ireland's Causeway coast beginning a new journey along the north and east coasts through Ulster and Leinster.
Fishbourne to Seaford: The final leg of Michael Portillo's South Coast adventure begins in Fishbourne. He also visits Brighton, and the South Downs.
Middlesborough to Boulby: Michael Portillo hunts for dark matter in the deepest mine in Britain in Boulby, North Yorkshire, then visits Middlesbrough's Transporter Bridge.
Ballymena to Carrickfergus: Michael Portillo visits a museum in Belfast Lough telling the story of Ireland's railway heritage and learns of the important role of Carrickfergus.