ITV3 HD Sunday

The master of Gresham College, an amateur astronomer, is found dead at the Oxford University observatory, and Lewis finds there are numerous suspects

An unwelcome house guest leaves DI Frost feeling grateful for a series of death threats and arson attacks to occupy his time. David Jason stars

The sleuth is called in to investigate when the UK's prime minister and his secretary are kidnapped in France. Drama, starring David Suchet

A Belgian film star arrives in London and summons her friend Poirot to unravel the mysterious threats she has been receiving, which demand the return of a priceless diamond

First episode of the costume drama. The lives of the Crawley family and their servants are changed for ever by the sinking of the Titanic. Starring Maggie Smith and Hugh Bonneville

Everyone is anxious at the arrival of Matthew Crawley, the heir presumptive, but he soon has problems settling in at Downton Abbey. Costume drama, with Maggie Smith and Dan Stevens

Mary is smitten by handsome houseguest Kemal Pamuk, Gwen is humiliated when her secret is exposed, and Bates takes action to cure his limp. Costume drama, starring Maggie Smith

The fair arrives in the village and Mrs Hughes finds herself the centre of speculation when she meets a former suitor who makes her question her position at Downton

As the village prepares for the annual flower show, Isobel and Violet are in conflict, and Mary is introduced to a potential suitor, but it would seem she only has eyes for Matthew

The newest resident of a police retirement community is found dead and Barnaby's investigation leads him to suspect the killer is likely to be an ex-officer

The doctor heads for London to meet the man leading the selection process for the job he wants, but has to conquer his blood phobia to secure the prestigious position

The new midwife in the village persuades Louisa to take a natural, holistic approach to treating an infection, infuriating Martin, who insists on medicine. With Gemma Craven

The detective investigates when a businesswoman's sister is found dead in the River Tyne, and suspects the victim was about to bring a secret to light

Hastings' new interest in photography provides Poirot with the clue to solve a mystery involving cyanide, failing brakes and mixed-up love lives.

Craig's lies begin to unravel and Karen's conduct at a vigil for Hannah is questioned. Manning juggles a divide in his team and Anne steps into Jenn's troubles at home

A vital clue leads the MIU to take a closer look at another of Hannah's family members, but Manning's frustrations at the lack of results reach an all-time high.

Daily escape designed to calm the mind and encourage relaxation and reflection

Buying goods from home

Daily escape designed to calm the mind and encourage relaxation and reflection

Buying goods from home

Katie tells Jackie to leave Butler's Farm after witnessing a vicious argument between her and Jo, while Perdy confronts Grayson over his casino trip.

Hari tries to con Edna into paying a bill for Tootsie's injuries, while Andy and Jo have a heart-to-heart about their parents. Grayson catches Perdy drinking with Matthew.