This Time Next Year, STV, 8pm

AS this series has proved time and time again, a lot can happen in a year. But will it prove long enough for the people featured on tonight’s show to achieve their goals and turn their lives around? The first person to set a target is Dawn Abbott, who sustained 55% burns to her upper body during an accident in 2013. Her confidence was so low, it took her nearly two years to leave the house, but now she’s hoping she can build her self-esteem up enough to help her daughter by collecting her grandkids from school. Meanwhile, Darren Charnley is pledging to lose 10 stone to help him keep up with his foster children, jiver Laura Preston wants to find a dancing partner, while Dean and Lucy Gathercole hope that after three failed rounds of IVF this is the year they will finally become parents.

Shetland, BBC1, 9pm

CARLA and Prentice Hayes are found murdered in a knife attack. Jamie Hayes is missing, initially leading the team to speculate that he could be responsible. But Jimmy is convinced Jamie could not have mutilated his mother in this way. Aware of her altercation with Prentice the previous evening, Perez pays a visit to Olivia Lennox.

The Great British Sewing Bee, BBC2, 9pm

HAVING settled into his new role as host, Joe Lycett returns, along with the nine remaining home-sewers, who this time are tasked with making children’s clothes. Challenges include creating hoodies and turning fake fur coats into fancy dress beasts. The final task sees contestants up against the clock as they make made-to-measure dance costumes so the dancing kids can perform the hornpipe, the tarantella and Highland dancing down the catwalk.

Martin Clunes: Islands of America, STV, 9pm

THE actor visits Puerto Rico, America’s third largest island, and the only one where Spanish is the main language. In 2017, Hurricane Maria ripped through the region, causing the worst disaster in its history. Martin sees how the locals have begun to recover.