TV Guide BBC Two Tuesday

The commissioner's return to the department is disrupted by a suspicious incident at Government House, in which a man has fallen from the roof to his death. It looks like a suicide, but DI Mervin Wilson suspects foul play. No one was on the roof with the victim when he fell and he'd locked the roof door behind him. Away from the investigation, Mervin is anxious to finally meet his half-brother Solomon, the other son of the mother he never knew. Don Gilet and Don Warrington star

John Craven, Charlotte Smith and Adam Henson mark the 200th anniversary of the Menai Suspension Bridge (Pont Menai). The bridge that first linked mainland Wales with Anglesey has also connected people, nature, farming and heritage through the generations, from Thomas Telford's daring engineering to the rare wildlife thriving in the fast flowing currents beneath it

Margie Cooper and Danny Sebastian cruise through Scotland's Central Belt in a 1991 Lincoln Town Car lowrider. Between antique shopping, they explore Scotland's industrial heritage and help restore a vintage tram, while Danny finds joy in an old ice cream van

Monty travels to the Netherlands, where the Rhine divides into a network of waterways that eventually flow into the North Sea. Criss-crossing these channels, he discovers how the Rhine has shaped Dutch life, the land and the culture for centuries - as well as visiting the biggest display of tulips in the world and the busiest flower market

Jason Manford presents the general knowledge quiz in which four contestants compete over three rounds to find a single 'unbeatable' answer and streak ahead of the rest to make the final where they can win a cash prize

James Gooch, Jacqui Harris and Adi Higham visit Fort Saint Andre in Villeneuve-les-Avignon in search of hidden antique treasures. First they look for something to appeal to their loyal customers and social media followers, James finds himself bewitched by a large oil painting of an elderly lady while Jacqui takes a leap out of her mechanical comfort zone with a pair of turn-of-the-century lace gloves. French-market veteran Adi strikes a double deal with a set of rosary beads and a relinquary. Adi then sets a specific brief for the dealers, they must find a ceramic vintage or antique piece

Actor Kelsey Grammer traces his ancestry on his grandmother's side, uncovering the story of a woman haunted by demons and finding a connection to a family who risked everything in one of the greatest migrations in American history

Michelle Dockery narrates a documentary examining the wildlife of the east Asian country, beginning on the central island of Honshu. It is home to more than 100 million people, but most of it is mountainous and this wilderness is home to an astonishing range of wildlife, and people and nature are drawn together in the most unexpected ways

Paul Martin and the team visit Layer Marney Tower in rural Essex, where antiques experts Elizabeth Talbot and Philip Serrell examine items brought in by members of the public, including an intriguing picture by a troubled artist. Paul also visits the home of the British oyster industry and gets hands-on with a conservation project