TV Guide 5SELECT Wednesday

Susan sets sail from the bustling city of Barcelona, boarding Harmony of the Seas, one of the biggest cruise ships in the world. It will be an action-packed cruise in the western Mediterranean. Before the ship departs, there's time for a quick tour of Barcelona and Susan's arrival coincides with the annual La Mercè Festival

The presenter's next stop is the port of Civitavecchia, where she signs up for an excursion to the Italian capital of Rome. Susan and her friends from the ship embark on a guided walking tour around the city - taking in all the major sights, including the Spanish Steps and the Roman Forum

A trip through the Peak District at full steam, pulled by the Royal Scot, one of the finest locomotives ever built. On the way from Crewe to York, the train travels over Chat Moss on a line built by Robert Stephenson, which once served the famous Rocket. Bill Nighy narrates

Ben meets a former carpenter who now lives alone on a private island in the Icelandic wilderness. He discusses how a struggle with alcoholism drove him to turn his back on life in the big city, and enlists Ben's aid in fishing and harvesting, as well as maintaining his yurt business. They also go swimming in the freezing waters and take a trek up the country's most famous volcano - and discover how the island could be under threat from Iceland's volatile environment

The friends set sail for France on Reuben Owen's first holiday abroad. Tommy gets hold of an action camera to capture the milestone adventure as the three mates start their long drive from the Dales to Dover in Reuben's second-hand Land Rover. Leaving the ferry behind in Calais, the friends' road trip will take them to Normandy and the Loire Valley

One of Jessica's former students publishes a best-selling novel, much to the excitement of the citizens of Cabot Cove - but their delight turns to dismay as fiction begins to mirror reality. Murder mystery, starring Angela Lansbury

A grieving crime writer blames her niece's husband for her death and concocts a plan to take revenge, luring him to her walk-in vault, before locking him in and leaving him to die. She then puts her knowledge of the criminal mind to good use by covering her tracks, and although Columbo strongly suspects foul play, he finds clues are thin on the ground. Crime drama, starring Peter Falk and Ruth Gordon

The latest train excursion includes a trip to Portugal's Quinta de Vargellas, a vineyard that has been making port for centuries. Cameras also focus on the seaside city of Aveiro, and there's a trip to Lisbon to visit the home of the regional custard tart. Narrated by Bill Nighy

Max goes head to head with hospital administration when he comes up with a new plan for patients without insurance. Iggy struggles with an accusation brought against him, while Sharpe navigates her role as deputy medical director

The medical drama returns with Max struggling to get back to normal three months after the accident and the birth of his daughter. Kapoor grapples with the stigma of ageing, Iggy has a successful day that inspires a life-changing idea and Reynolds deals with an unreliable new intern