TV tonight: an intimate look at life for Britain's Bengali families

A Very British History
9pm, BBC Four

The academic Aminul Hoque has spent his career working on the intersections of immigrant identity. In this sensitive, personal film he recounts his experiences growing up as a Bangladesh-born child in 1980s east London and learning about his father’s own journey to Britain in the 60s, like many other Bengalis of his generation. Now taking his own children back to Bangladesh, Hoque questions the effects that systemic racism and generational assimilation have had on their sense of what constitutes home. Ammar Kalia

Saving Lives at Sea
8pm, BBC Two

Part of a series telling the extraordinary story of the nationwide volunteers who make up the Royal National Lifeboat Institution (RNLI), tonight’s show sees the victim of a shocking shark attack being rescued, as well as two young boys who have been swept out to sea. Largely shot on bodycams, it is a visceral watch. AK

Harry Redknapp’s Sandbanks Summer
8pm, ITV

’Arry continues his guide to Dorset’s poshest enclave and his homestead. This week, guests John Barnes and Chris Kamara take part in a powerboat race, with a slap-up dinner from the local chippy at stake, before climbing aboard a luxury yacht. Then they come face to face with nudists … Jack Seale

Kevin McCloud’s Rough Guide to the Future
9pm, Channel 4

Kevin McCloud and co conclude their squint through a scanner darkly. In the US, Jon Richardson explores life-prolonging technology; in China, Phil Wang discovers how science is helping people make a living; and in Japan, Alice Levine finds out robots are becoming almost as advanced as humans. Ali Catterall

The Righteous Gemstones
9pm, Sky Comedy

The daughter of a big church donor is acting out, so Eli tasks Kelvin with leading her back to the path of righteousness. Naturally, that path involves several detours, including a trip to Club Sinister, where adorable ex-satanist Keefe feels himself drawn to sin’s sweet embrace. Ellen E Jones

Avenue 5
10pm, Sky One

With the proverbial well and truly having hit the fan in last week’s episode of Armando Iannucci’s galactic cruise comedy, our captain Ryan (Hugh Laurie) must try to cover his tracks and assure passengers that they will make it home eventually. Meanwhile, owner Herman is still trying to take charge of the rescue mission. AK

Film choice

The Garden, 1.55am, Film4
Having tested HIV-positive, the rebel-spirit director Derek Jarman embarked in 1990 on a near-wordless portrait of his garden, nurtured in the shadow of the Dungeness nuclear power station. Its bleak imagery illustrates a profound exploration of mortality and Christian cruelty in the era of Aids. Paul Howlett

Live sport

Cycling: Track World Championships 7pm, BBC Four. Includes the women’s 10km scratch race.

Champions League Football: Real Madrid v Manchester City 7pm, BT Sport 2. First-leg tie from the Bernabéu.

Championship Football: Millwall v Birmingham City 7.30pm, Sky Sports Main Event. Action from the Den.