Gary Barlow Live at Eden (BBC1, 10.35pm)

Surely one of the most spectacular music venues in the world, the Eden Project has been hosting Eden Sessions since 2002, with the likes of Oasis, Kaiser Chiefs, Dizzee Rascal, Amy Winehouse and Lionel Richie among the diverse acts to have headlined. Now, the Take That member, solo artist, former X Factor judge and occasional actor (he's even been in Heartbeat, don't you know) can add his name to this ever-growing list, after his Sessions performance last month. It's broadcast here for the first time in all its glory, so those of us who weren't lucky enough to get tickets don't have to miss out.

Gary Barlow is used to playing the biggest venues in the world, as well as the most prestigious occasions (he's sang for the Queen, after all) so Eden's 6,500 capacity will be unlikely to faze him, but the majesty and beauty of Eden might inspire him.

His uplifting songs will be perfect for the surroundings, Eden's vast biomes and outdoor botanical gardens lit up to provide a fittingly impressive backdrop to his hits such as Sing, Let Me Go, Forever Love and Love Won't Wait.

Barlow is, of course, most famous as the de facto lead singer of Take That, the group which topped the charts so consistently throughout the early 1990s, before coming "back for good" (so far at least) in 2005, when it became apparent that their popularity had done little in the way of waning - despite the lack of Robbie Williams (although Williams did briefly rejoin between 2010 and 2012). Although Barlow won't be joined by his bandmates Mark Owen and Howard Donald (Jason Orange left in 2014), there's every chance that fans will be treated to a rendition or two from the Take That back catalogue - he did write most of their songs, after all, and nothing rallies a crowd quite like a rousing version of Greatest Day or Back for Good.

It won't all be old material, however, with new Barlow solo tracks including Relive Those Years, which hasn't been released as a single yet but is already becoming a firm favourite among fans during his live performances. It tells the story of his time within the band, from their earliest years through to their eventual reformation, and has a few witty and self-deprecating lyrics along the way.

Barlow, then, is more of an all-round entertainer these days, adding to his skills as a singer-songwriter with a good line in humour and crowd-pleasing banter. He's certainly embarking on the next stage of his career, and while we hope he won't turn his back on the band just yet, the new Gary Barlow is a more versatile and far more entertaining character than ever he was before.

It's a big night for music elsewhere, too, as today marks the First Night of the Proms - which is shown on BBC2, conveniently ending just before Barlow takes the stage here. Music lovers rejoice!

Celebrity 5 Go Caravanning (C5, 8pm)

There have been so many shows about veteran celebs going on holiday together, it's practically become its own genre, but this series should prove there is still life in the format. It takes former Doctor Who Colin Baker, Benidorm's Sherrie Hewson, veteran DJ Tony Blackburn, ex-EastEnder Todd Carty and pop star Sonia and sends them out on the open road in touring caravans. In this first edition, our famous five meet for the first time in Morecambe, before heading to the Lake District. Unfortunately, the trip doesn't get off to the most promising start, as they manage to get lost and pick up a puncture. Will arriving at the Keswick campsite lift their spirits, or will trying to reverse their caravans into the pitches prove too much?

First Night of the Proms (BBC2, 8.30pm)

New series. At London's Royal Albert Hall, the new season launches with a feast for the eyes and ears in the world premiere of Five Telegrams, with music by Anna Meredith and stunning digital projections by 59 Productions marking the centenary of the end of the First World War. The all-British programme also features Vaughan Williams' pre-war choral masterpiece Toward the Unknown Region, along with Holst's evergreen Proms favourite The Planets - the first piece Mars, Bringer of War, famously anticipates the onset of mechanistic warfare. The BBC Symphony Orchestra, under conductor Sakari Oramo, is joined by the combined forces of the BBC Symphony Chorus, the National Youth Choir of Great Britain and the BBC Proms Youth Ensemble. Presented by Katie Derham.

8 Out of 10 Cats Does Countdown (C4, 9pm)

New series. Regulars including hitherto perennial host Jimmy Carr are nudged to one side as Canadian comedian Katherine Ryan hosts an all-female edition of the words-and-numbers quiz, inviting Roisin Conaty and Jessica Hynes to take on Sara Pascoe and Lolly Adefope, as part of a celebration of 100 years of women's suffrage. As usual, Rachel Riley is at the letters and numbers board, while Morgana Robinson appears in character as EastEnders' Natalie Cassidy alongside wordsmith Susie Dent in Dictionary Corner.