Thursday’s best TV: Kat and Alfie – Redwater; The ITV Leaders’ Debate | Television & radio

Kat and Alfie: Redwater
8pm, BBC1

This bold EastEnders spin-off begins with Kat and Alfie Moon moving to a quiet village in Ireland. It’s hard to imagine them existing outside Walford (specifically behind the Queen Vic bar) and Kat is softer and less cleavage-centred as she searches for the long-lost son she gave birth to aged 14. This new departure feels more Broadchurch-esque mystery than soapy “You’re not my muvva” knees-up and it’s a totally different beast to EastEnders. Hannah Verdier

The ITV Leaders’ Debate
8pm, ITV

As we went to press, the lineup for what’s shaping up to be a very missable slice of modern political theatre was unclear. Despite asking the nation for a mandate, Erdoğan tribute act Theresa May doesn’t appear to fancy justifying her policies in public debate. A chance for Jeremy Corbyn to bypass a hostile media and get his message out then? Nope, he doesn’t seem to be up for it, either. Julie Etchingham will be hosting, hopefully with a couple of pointedly empty chairs. Phil Harrison

Morocco to Timbuktu: An Arabian Adventure
9pm, BBC2

Alice Morrison’s 2,000-mile journey down former trade routes from Morocco to Africa’s fabled city of gold reaches its second leg, where things cut up a bit rough – even for the Sahara. It’s 50 days by vengeful camel across the desert, affording opportunity to reflect on perilous journeys past, a trade history founded on slavery. It’s still a dangerous trip – especially since the jihadist uprising in Mali – but there are some delights along the way. John Robinson

Shut-Ins: Britain’s Fattest Woman
9pm, Channel 4

As dieters will attest, preventing hard-lost pounds from returning involves more than just dietary changes. During 2015’s Shut-Ins: Britain’s Fattest People, Sharon Hill weighed 46st. Tonight, cameras catch up with Sharon to find that, following surgery, she had shed 14st. But she’s still housebound and, with her weight rising once more, can another procedure offer opportunities to enjoy life beyond the confines of her house? Mark Gibbings-Jones

Pica Syndrome: The Woman Who Ate a House
10pm, Channel 5

The next time somebody asks Nina from Bradford if she’s ever swallowed a dictionary, she may well reply in the affirmative. Book-guzzler Nina is just one of the individuals featured in tonight’s programme who suffers from the rare disorder known as pica – a compulsion to eat non-foods, such as toys, their own hair or, in Patrice’s case, the plaster walls of her own home. Can the professionals wean them off their lousy diets? Ali Catterall

A Tale of Two Sisters
8pm, Yesterday

When Amelia Earhart disappeared over the Pacific Ocean in 1937, she was one of the most famous people on Earth – the aviator who had become the first woman to fly solo across the Atlantic, among other records. The first of a three-parter about famous siblings recalls both Earhart’s life and the subsequent efforts of her sister, Muriel, to curate Amelia’s legacy. It’s an extraordinary story, well told, and the archive footage is stunning. Andrew Mueller

9pm, Sky Atlantic

John Ridley’s drama of radical racial politics in the 70s concludes with the cell preparing to strike at the cops. If, that is, Dhari and Marcus can stop trying to out-alpha male each other over Jas long enough to turn their attentions to attacking a common enemy. Meantime, Cullen thinks he’s about to foil the attack. Taut and cleverly constructed where much before has been curiously flat, at the last an episode to make you want a second series. Jonathan Wright

Film choice

To Sir, With Love (James Clavell, 1967) 4.45pm, Sony Movie Channel

Hollywood hit Blackboard Jungle is transplanted to London’s East End with Sidney Poitier, classroom rebel of the earlier film and now an idealistic West Indian teacher confronting the racism and cockney accents of some little delinquents. Blackboard Jungle was hard as GCSEs, but this was soft enough to inspire the affable TV sitcom Please Sir. Paul Howlett

Live sport

Cycling: Giro d’Italia The 12th stage from Forli to Reggio Emilia. 12noon, Eurosport 1

Premier League football: Leicester City v Tottenham Hotspur Last season’s heroes entertain a Spurs team in danger of becoming perpetual nearly-men. 7.30pm, Sky Sports 1

League Two football play-offs The second legs of Exeter v Carlisle and Luton v Blackpool. 7.30pm, Sky Sports 2