TV Guide 5SELECT Thursday

The tower staff prepares to reopen to paying visitors after lockdown results in the longest closure in 75 years, beginning with a special ceremonial lowering of the drawbridge. The ravenmaster makes sure his birds are ready to interact with members of the public after months in isolation, while the chief curator oversees the launch of a gruesome new attraction commemorating the executions on Tower Hill

As the UK's lockdown relaxes in July, visitors finally return to the Tower as it reopens it gates to the public, and staff have to adjust to a new normal. The new one-way system is up and running, and new yeoman warders Barry Stringer and Darren Hardy have to get back up to speed with their historical facts

Ben journeys to the Suffolk countryside and a secretive patch of woodland, to spend the week with unique character Will, 50, who could be described as a true British caveman. Ben embraces Will's Stone Age-style existence in the forest and discovers how a childhood passion carved Will's future, the price he paid for following his dream, and how he is steering it back around as Ben meets him at a new stage in his prehistoric life

A visit to the picturesque market town of Shaftesbury in the north of Dorset, where the annual Gold Hill Cheese Race is taking place. Elsewhere, experts take viewers on a dive into the natural habitat of the native Spiny seahorses, and there's also a visit to a woodland retreat near Beaminster, where Guy Mallinson has designed and built three unique treehouses

With a ewe and her unborn babies in danger, Peter Wright heads to one of his most unusual lambing locations - under a railway bridge. Julian hopes cutting-edge technology can end a rough collie's serious leg problems and Matt performs surgery to remove a koi carp's tumours. Plus, Shona visits a pony with mysterious lumps on her skin

Peter Wright helps a young farmer who has inherited her farm from her late father, Matt Smith's latest unusual patients are father and son otters at the local zoo, and Julian Norton operates on a much-loved Collie called Callie

Jessica attends a dinner party thrown by a famous artist, who is found dead the following morning. As the police arrest his maid for the crime, Cabot Cove's resident sleuth sets out to paint a picture of what really happened on that fateful night - and take the accused woman out of the frame. Angela Lansbury stars, with Tom Bosley, William Windom and Dick Sargent

An orchestra conductor murders his mistress for threatening to reveal their affair, and makes her death look like suicide. However, he reckons without the intervention of crumpled cop Columbo, who sees through the subterfuge and determines to get to the truth. Detective drama, starring Peter Falk, John Cassavetes, Myrna Loy and Blythe Danner

With a ewe and her unborn babies in danger, Peter Wright heads to one of his most unusual lambing locations - under a railway bridge. Julian hopes cutting-edge technology can end a rough collie's serious leg problems and Matt performs surgery to remove a koi carp's tumours. Plus, Shona visits a pony with mysterious lumps on her skin

Peter Wright helps a young farmer who has inherited her farm from her late father, Matt Smith's latest unusual patients are father and son otters at the local zoo, and Julian Norton operates on a much-loved Collie called Callie

For years, London's East End was denied a new bridge because of the need to guarantee passage of ships up and down the Thames. For years, the greatest engineers of the age hunted for a design that would keep both road and water traffic moving. As Rob Bell explains, the solution came from architect Horace Jones, whose revolutionary design, with its thousand-tonne opening sections, was powered by nothing more than water. Rob also explains the bridge was lucky to survive the Second World War, having been a target for German V-1 flying bombs