Coastal Walks with My Dog (more4 | 8:00pm to 9:00pm | Saturday 19th March 2016)

There’s no better way to experience the beauty of Britain’s shorelines than on a coastal walk with your dog. Six celebrities walk Britain’s diverse and dazzling coastline accompanied by their faithful four-legged friends, meeting local experts, enthusiasts and fellow walkers along the way. The celebrities taking part include actor Angela Griffin, Cerys Matthews and property presenter Phil Spencer. In the first episode, Bill Bailey goes on a smugglers’ trail in North Devon, while 6Music broadcaster Cerys Matthews walks Pembrokeshire’s rugged coastline, and actor and impressionist Debra Stephenson is on Dorset’s Jurassic coast.

Great Canal Journeys (Channel 4/HD | 8:00pm to 9:00pm | Sunday 20th March 2016)

Timothy West and Prunella Scales embark on more spectacular canal journeys. Sweden is a land of deep forests, vast lakes and island-strewn coasts, and linking it all together is a ribbon of blue. Tim and Pru head into uncharted waters as they attempt one of the longest and most beautiful canal journeys in the world, travelling 350 miles, coast to coast across Sweden. The first leg of their voyage begins in Gothenburg, where they link up with the historic Göta Canal, taking them into the heart of the country and onwards to the Baltic Sea. The Göta may be famed for its beauty, but it’s also nicknamed ‘the Divorce Ditch’, with its steep locks that have pushed many a Swedish marriage to breaking point. How do Tim and Pru cope?

Dispatches (Channel 4/HD | 8:00pm to 8:30pm | Monday 21st March 2016)

It’s six years since Britain’s beloved confectioner Cadbury was bought by American giant Kraft in one of the most controversial takeovers in recent corporate history. As we prepare for the annual Easter chocolate indulgence, Dispatches lifts the lid on what’s been happening to one of our favourite brands. From Creme Egg controversies to foreign manufacturing, reporter Harry Wallop investigates our favourite chocolate and how far Cadbury has come from its benevolent heritage.

The Food Chain (Channel 4/HD | 8:30pm | 9:00pm | Monday 21st March 2016)

This new food series follows the journeys made by Britain’s best-loved foods; from field, farm, and sea, all the way into delicious dishes in our supermarket aisles, kitchens, cafes and some of the country’s top restaurants. The series reveals the inner workings and secrets of the UK’s food distribution web, exploring where our food comes from and how what we eat connects us all. From lamb to peas, truffles to eggs, and sardines to raspberries, each episode weaves together the shipment of two products. The first episode follows two British staples, sea salt and Bramley apples – from an orchard in Kent, and a family-owned salt works in Maldon, Essex. The two ingredients go cross country before ending up on our plates – be it as handmade chocolates to classic Greek recipes, and finally a dessert masterpiece at the Ritz.

The Tube: Going Underground (Channel 5 | 9:00pm to 10:00pm | Monday 21st March 2016)

Documentary series following the work of the staff who keep London’s underground train service running smoothly. Charlotte struggles to keep the ageing stock of Piccadilly Line rolling. At Bank station, Naeem’s plan to send passengers to London Bridge during a strike leads to chaos. At Holborn, station supervisor Tony tries to update a decades-old rule on the escalators.

Inside Obama’s White House (BBC 2/HD | 9:00pm to 10:00pm | Tuesday 22nd March 2016)

The story of how Barack Obama tried to reshape America, as told by his inner circle and the president himself. Episode two tells the story of Obama’s greatest legacy: healthcare. When Obama announced his proposals for affordable, accessible healthcare for every American, he sparked a bitter conflict. Within weeks of his launch, members of Congress were confronted by angry ‘Tea Party’ protesters. As opposition grew, Obama’s top advisers asked him to go for a less ambitious bill – he refused. His chief of staff knocked heads together inside his own party, as Democrats in Congress began to fight amongst themselves. The final battle was over abortion – the Catholic bishops tried to kill the bill. The hero who saved him was Sister Carol Keehan. She mobilised 59,000 US nuns and faced down the bishops to get Obama the votes he needed. But in the midterm elections, Obama lost more seats in Congress than any president since 1938.

Ugly House to Lovely House with George Clarke (Channel 4/HD | 8:00pm to 9:00pm | Thursday 24th March 2016)

In the final episode of the series, Denise and Ali seek a new lease of life for their uninspiring council house in Croydon on a tight budget of £120,000. The award-winning architect Jo Cowen has worked on projects including the British Museum and JP Morgan’s tower at Canary Wharf. Jo plans a striking glazed extension and an exciting plan for the upstairs that requires an extra £40,000. But problems begin to appear, pushing the couple to the brink.

The Last Leg (Channel 4/HD | 10:00pm to 11:05pm | Friday 25th March 2016)

The critically acclaimed award-winning show continues with its unique brand of irreverent satire for a seventh series. Adam Hills, Josh Widdicombe and Alex Brooker tear into the weird and wonderful talking points of the week. A celebrity guest joins the team in front of a live studio audience.

All TV guide information taken from DigiGuide — www.getdigiguide.tv/?p=1&r=15119.