The 5 best shows on TV tonight: Wednesday 14 April

The Great British Sewing Bee is back tonight with a new lot of sewers testing their creativity and skill set.

Meanwhile, MasterChef fans will at last see one of the three finalists named as the series 17 winner as the delayed finale airs.

Elsewhere, the inspiration behind Line of Duty is explored in a documentary series covering the major internal corruption scandals in the Metropolitan Police that prompted the creation of the first internal anti-corruption unit, A10.

Read more: Penny Lancaster is a fully qualified police officer

Plus a young man goes in search of answers after his sister's sudden death in a new BBC Three documentary.

MasterChef - 8pm - BBC One

The delayed MasterChef finale airs tonight at last, as finalists Mike Tomkins, Alexina Anatole and Tom Rhodes battle it out to be crowned the 2021 champion.

To impress judges Gregg Wallace and John Torode, the trio must produce the best three dishes of their lives to walk away with the trophy.

Watch: 11 Things You Need to Know to Be On "MasterChef"

Paul O'Grady: For the Love of Dogs - 8pm - ITV

The TV presenter meets more cute canines in the second episode of the latest series, including Staffie-cross Roxi who at five years old has the energy of a puppy.

Read more: Countdown's Rachel Riley announces pregnancy

Meanwhile, on the opposite end of the energy spectrum is a subdued stray bulldog that O'Grady names Dottie. Staff at Battersea believe she is about four years old and had recently had a litter of puppies.

Staff reckon her neighbour Mo, also a bulldog, could help build her confidence.

The Great British Sewing Bee - 9pm - BBC One

Twelve new talented sewers have their needles at the ready as the Sewing Bee is back for a seventh series.

Joe Lycett returns as the competition's host alongside judges Esme Young and Patrick Grant.

The first week back sees the contestants tasked with making a shell top for their Pattern Challenge, while they must turn old t-shirts into a completely new garment in the Transformation Challenge before creating a buffet dress for a real life model in the Made to Measure task.

Bent Coppers: Crossing the Line of Duty - 9pm - BBC Two

The new series tells the story of police corruption that went to the top of the Met and lead to the formation for the first internal anti-corruption unit which inspired Line of Duty.

Read more: Line of Duty: Who is Jo Davidson's mystery relative?

It kicks off in 1969 when a south London criminal tips off The Times about how he is being extorted for money by a detective in the Metropolitan Police, which ultimately leads to exposing a network of corrupt officers.

Interviews, archive footage and secret recordings are all used to tell the fascinating real-life story.

Sudden Death: My Sister’s Silent Killer - 10.45pm - BBC One

A man sets out on a journey to learn more about the death of his 19-year-old sister Lauren from Sudden Adult Death Syndrome, a cause of cardiac death even experts don’t fully understand.

As Patrick grieves his sibling, he wants answers on whether anything could've been done to prevent her death and if other deaths of this kind are preventable.

He attends bereavement counselling, undergoes cardiac tests with the rest of his family and speaks with Fabrice Muamba, the footballer who survived SADS after collapsing halfway through a match at White Hart Lane.

Watch: BBC receives record number of complaints over coverage of Prince Philip's death