The Gadget Show (C5, 7pm)

JON BENTLEY is taking to the skies, testing out consumer drones that not only promise to be friendly to your wallet, but easy to fly and record top-notch video. Craig Charles and the gang ask what’s the best computer to replace an ageing desktop PC, and Jon and Georgie Barrat are armed with a budget and a premium Sonos sound bar to investigate if there’s much difference. Ortis Deley dons some Lycra to bring us a rundown of his top five bike accessories, and Harry Wallop has tips on claiming compensation online.

Kate Humble

Kate Humble

Kate Humble’s Coastal Walks (C5, 8pm)

Kate walks some of Britain’s most beautiful coastal paths, beginning with an 11-mile walk in Exmoor along one of the most beautiful coastal paths in the world: the South West Coast Path. Starting at Porlock Weir, she heads to the tiny parish of St Bueno’s, before going inland to see the valley that inspired RD Blackmore’s novel, Lorna Doone. Then, after a stop-off at Kipscombe Farm which is now home to an ancient variety of longhorn cattle, the presenter heads to the remains of an iron age fort and meets author Raynor Winn. Finally, Kate rides the world’s highest and steepest water-powered railway before finishing her walk in the incredible Valley of Rocks.

Television historian Dr Janina Ramirez

Television historian Dr Janina Ramirez

Raiders of the Lost Past with Janina Ramirez (BBC Two, 9pm)

Historian Janina Ramirez begins a new run of the archaeological show, previously shown on BBC Four. Once again, she will be following in the footsteps of three explorers who travelled the world in search of lost treasure and looking at three more finds that changed our understanding of the origins of civilisation. In tonight’s opening episode, Janina is on the island of Crete pursuing the trail of the millionaire who discovered the mythical palace of the Minotaur and the first Western civilisation – but who is now mired in controversy.

 It’s A Sin

It’s A Sin

It’s a Sin (C4, 9pm)

This five-part drama from Russell T Davies became All 4’s biggest ever instant box set hit when it was released at the end of January. It reaches a conclusion tonight, with the situation darkening inside the Pink Palace and the flatmates rallying around to help. Jill and Roscoe work extra hours, Ritchie clings to past success, and even Carol finds a kinder side. But time is running out, and as the final days of the old gang unravel, everyone must face up to the spectre of AIDS and the prejudice and fear that walk alongside it. When Valerie goes on the warpath, terrible confrontations are made, and it’s up to Jill to find hope and reconciliation for Ritchie in the darkest days of their lives.

Jools Holland

Jools Holland

Later – with Jools Holland (BBC2, 10pm)

With the challenging times continuing for a while yet, Jools is looking to keep viewers entertained with a brand-new six-part series. In tonight’s first edition, filmed at Jools’ creative home – his unique south London recording studio – the Piano Man welcomes one of this year’s most hotly tipped artists, Hammersmith-born singer-songwriter and poet Arlo Parks. She will perform a track from her critically acclaimed album Collapsed In Sunbeams. Tonight also sees the much-awaited return of Tennessee rockers Kings of Leon, who will perform The Bandit from their forthcoming eighth album, When You See Yourself. And finally, Nottingham’s polemical frontman Jason Williamson and dexterous producer Andrew Fearn aka electronic punk duo Sleaford Mods will provide a specially shot performance of their new single, Mork n Mindy, featuring newcomer Billy Nomates.

Graham Norton

Graham Norton

The Graham Norton Show (BBC1, regions vary)

Graham welcomes Oscar-nominated actress Rosamund Pike, star of comedy thriller I Care a Lot, in which she plays a shady legal guardian who ends up in trouble when she tries to fleece a woman who has ties to a gangster. Also appearing is fiery TV chef Gordon Ramsay, who’s hosting a new high-stakes quiz show called Bank Balance for the BBC. And finally, there’s a chat with Welsh and Lions rugby great Gareth Thomas, who talks about his latest book, Stronger and his recent appearance on Celebrity Best Home Cook.