Inventing the Impossible: The Big Life Fix
8pm, BBC2
A welcome return for the uplifting show, in which teams of inventors try to come up with ingenious ways to change the lives of people in need. The first programme attempts to help brain-injured former snowboarder Graham, 40, who longs to get back out on the slopes; Alex, 25, who suffers from extreme sensitivity to the sun’s ultraviolet rays; and Kyle, 27, who was born with a deformed hand that stands in the way of his lifelong ambition to become a hairdresser. Mike Bradley
Keeping Faith
9pm, BBC1
Secrets and lies swirl around, as the excellent drama about a lawyer reckoning with the aftermath of her husband Evan’s disappearance continues. Tonight, Faith gets dragged to the cop station and family friend Reverend Talbot runs into trouble. Plus, why did Evan buy a DNA-testing kit? Jonathan Wright
Horizon: Spina Bifida & Me
9pm, BBC2
Actor Ruth Madeley has spina bifida and in this doc she reports on pioneering surgery that could change the lives of babies born with the condition, which occurs four weeks after fertilisation, when many mothers are unaware of their pregnancy. We also learn that folic acid could help prevent 70% of cases. MB
Our Shirley Valentine Summer
9pm, ITV
Desperate to debunk the myth that women cease being sexual objects the very second that they reach midlife, this reality show sees Nancy Dell’Olio, Melinda Messenger and the gang continue their voyage of discovery on Naxos. This week, Ingrid Tarrant goes on her first date for 11 years. Hannah Verdier
Prison
9pm, Channel 4
The conclusion of a powerful two-parter about life inside HMP Durham addresses challenges facing the staff of an institution where it is thought that as many as 600 prisoners may suffer from mental health problems. It turns out the prison has only 11 sick beds and one dedicated mental health nurse on duty. MB
Sick Note
10pm, Sky1
A second series for this sitcom starring Rupert Grint as Daniel, a feckless waster trying to capitalise on his cancer misdiagnosis. As we rejoin him, his tissue of lies comes close to disintegration as an online friend turns up out of the blue. A passable idea but never funny or involving enough to truly convince. Phil Harrison
Film choice
Song of the Sea (Tomm Moore), 12.50pm, Film4
Another wondrous piece of animated Irish folklore from Tomm Moore. Ben (voiced by David Rawle) lives with his lighthouse-keeper father (Brendan Gleeson) and mute little sister Saoirse – who, like the children’s vanished mother, is a half-human, half-seal “selkie”. Strange events set the kids on a magical journey. Paul Howlett
Today’s best live sport
Golf: Ladies Scottish Open 2.30pm, Sky Sports Main Event. Day one coverage from Gullane Golf Club in East Lothian.
World Matchplay Darts 7pm, Sky Sports Action. The quarter finals begin.
Rugby League: St Helens v Warrington Wolves 7.30pm, Sky Sports Main Event. Super League clash held at the evocatively named Totally Wicked Stadium.