Join Carol Klein for a time of hope in the garden

FOR gardeners, this time of year is all about hope, when everything accelerates, and doubts are swept aside with the last of the winter detritus. Beneath the still-bare trees in her woodland garden at Glebe Cottage in Devon, Carol introduces us to ‘Cinderella plants’ – wood anemones, celandines and other delightful spring flowers that must push through the ground, flower and set seed before the tree canopy closes over, when they must sleep once more until next spring. She also shows us the joy of dividing snowdrops and primroses, as well as what work should be under way in the veggie garden.

Dragons' Den

Dragons’ Den (BBC1, regions vary)

Peter Jones, Deborah Meaden, Touker Suleyman, Tej Lalvani and Sara Davies are ready to grill more entrepreneurs, who in tonight’s episode include a Mancunian pair with a dream of sharing music through an app. Unfortunately for them, the Dragons seem to think their forecasts are a bit on the optimistic side, but can the duo convince the industry giants that their business is still worth investing in? There’s also fierce questioning in store for a husband-and-wife team who want backing for their ethical clothing verification platform. However, there’s also proof that beneath the Dragons’ fearsome exteriors there are some soft hearts as a pitch for an active shape-wear range takes an emotional turn.

Saved By a Stranger: Anita Rani with Karl, who was a passenger on the first carriage of the Piccadilly Line London Underground train – one of the four targets of the 7/7 bombings – and has been looking for the mystery woman who comforted him

Saved By a Stranger (BBC2, 9pm)

Anita Rani presents a new series exploring the stories of people who were caught up in world-changing events, including the Holocaust, the 7/7 terrorist attacks and the Troubles in Northern Ireland. But there is something else that links them – they were all on the receiving end of an act of exceptional humanity, and are now going in search of the people who helped them. The first episode hears from Karl, a trainee clinical psychologist who was a passenger on the first carriage of the Piccadilly Line London Underground train – one of the four targets of the 7/7 bombings. In the wake of the explosion, he was comforted by a mystery woman and now he wants to finally track her down. We also meet Emina, who hopes to find the doctor who helped her family get on the list for immediate medical evacuation after her home city of Sarajevo came under siege during the civil war.

The Goldbergs

The Goldbergs (E4, 9pm & 9.30pm)

The American sitcom returns for an eighth season. A week before school starts again, Beverly makes a huge announcement to the family – she is flying them all to Miami for a family vacation. However, she is hiding another secret, the only reason they are going to Florida is for a Bar Mitzvah, but she doesn’t want to tell the kids because they know they will get mad at her. As the plane is forced to take an emergency detour in Atlanta after Murray gets stuck in the lavatory, Adam’s non-stop jokes about the movie Airplane! annoy Brea, who wants to talk about something important.

This Is My House: Erica

This Is My House (BBC1, regions vary)

For the last episode in the series, panellists Bill Bailey, Emily Atack, Judi Love and Jamali Maddix are joined by guest Katie Piper as they attempt to identify the real owner of a house. This week, the property in question is a stylish home in South East London, which belongs to an artist named Erica, who lives there with partner Sam. There are four Ericas, who share their opinions on everything from the story of their wedding day to the name of their plumber, but only one is the genuine article. If the panellists get it right, the real Erica will be walking away with a cash prize.

Frank of Ireland

Frank of Ireland (C4, 10pm)

There’s bad news for Frank this week – it seems things are getting serious between Aine and Peter-Brian. So, he could either wish her well and move on with his own life, or try to sabotage her relationship by exposing the object of her affections. Naturally, he goes for the latter option, but in the process of collecting evidence, he starts to take a shine to Peter-Brian himself, much to Doofus’ concern. Meanwhile, Mary needs help covering the mortgage so she opens her home to a tenant – or two.