TV Guide BBC Two Thursday

The team investigates when a seaweed farm is targeted in an act of sabotage, with fisherman Jeff Simmons swearing that he saw the legendary mermaid of Shipton Abbott on the night of the incident. With no logical explanation for how someone could damage the farm and get away unseen among glowing bioluminescent waters, Esther braces herself for an excited Humphrey to run wild with the possibility that their prime suspect could be a mermaid

The eight finalists compete to win the fish course and the judges are tasked with picking a winner from the eight dishes, which are all inspired by the British film industry. Actor Will Poulter, who studied chef skills for his role in The Bear, joins Tom Kerridge, Lorna McNee and Phil Wang on the judging panel

The celebrities continue their adventure in Durham and visit the 12th-century Norman cathedral, where Canon Charlie Allen introduces them to the ancient pilgrim tradition of foot washing. They then head for Heavenfield, an ancient battlefield, and Housesteads near Hadrian's Wal, the UK's best-preserved Roman fort

Martel Maxwell meets a man in Carnoustie renovating a home for him, his dog and a menagerie of other animals to live in. Dion Dublin decides it is not safe for him to enter a house in Merseyside and Jacqui Joseph finds there's space to play with in an Essex auction home

A couple from a busy seaside resort dream of a new life in Somerset for their young family, with outside space for chickens, llamas and maybe even a pig. Denise Nurse takes on their countryside search, lining up a selection of homes, including one with spectacular views across the Bristol Channel to Wales. She also meets a creative pair who have already made their rural escape and gets hands on with some screen printing

Monty Don previews a new garden in London's Regent's Park to commemorate the life of Queen Elizabeth II, due to open on what would have been her 100th birthday. The team also go behind the scenes of the project, with Advolly Richmond uncovering the park's past, from its origins as a Tudor royal hunting ground to its reinvention as wartime allotments, and Adam Frost helping volunteers plant 11,000 spring bulbs

Seema Jaswal presents coverage of the afternoon session on day six at the Crucible Theatre in Sheffield, featuring the start of the opening second-round match and the conclusion of the first round contest between Si Jiahui and a qualifier. Si prevailed 10-6 against David Gilbert in his opener last year. With commentary and analysis from Steve Davis, Ken Doherty, Steven Hallworth, Stephen Hendry, John Parrott, Joe Perry, Dennis Taylor and Lee Walker

The team visit Herstmonceux Castle in East Sussex, where experts Jonathan Pratt and James Lewis find treasures to take to auction, including some beautiful bronze sculptures. And Paul Martin takes a trip on a very large miniature railway

Eight regional champions cook their main courses in a bid to secure a place at a banquet celebrating the British film industry. Director Sir Stephen Frears joins Tom Kerridge, Lorna McNee and Phil Wang on the judging panel. In a twist, a mystery wildcard chef is invited into the kitchen to enter the fray

The dessert final marks the last chance for the chefs to win a dish at a red-carpet banquet in Liverpool to celebrate the British film industry. Michelin-starred chefs Tom Kerridge and Lorna McNee and comedian Phil Wang join Chocolat author Joanne Harris on the judging panel. They're tasked with picking a winner from eight fantastic dessert courses