The Dragons are joined by a new member, Sean O'Sullivan, as a new series of 'Dragon's Den' begins in RTE 1 this Sunday.

TV highlights

'Dragon's Den' (RTE 1, Sunday, 9.30pm) - Now in its fourth series and again presented by Richard Curran, 2012 sees a new line up of Dragons. Stepping into the Den is Sean O'Sullivan who has been building successful technology companies in the US since the beginning of the internet in the 1990s, from developing the technology for street mapping (used in Google Earth) to coining the phrase 'cloud computing' in his pioneering work back in 1994. He brings a Silicon Valley streak to the Den and join existing Dragons Norah Casey, Gavin Duffy, Niall O'Farrell and Bobby Kerr as they hear pitches and search for investment-ready ideas from budding entrepreneurs and inventors. This series will see a number of records broken with the highest amount of money invested so far in the four series - over €800,000. The nine-part series will see a host of original and unique ideas pitched to the Dragons with everything from board games to beauty products and curry sauces. But will the Dragons invest? And if more than one Dragon is interested, who will come out on top? ___________________________________________________________ 'Love Life' (ITV, Thursday, 9pm) - Written by Bill Gallagher and directed by Dominic Leclerc, this new three-part romantic comedy drama stars Rob James-Collier, Andrea Lowe, Alexander Armstrong, Sophie Thompson, Sorcha Cusack and Kieran O'Brien. A year ago, Joe decided to travel the world just one last time, but his girlfriend, Lucy, had other ideas. She felt it was time they finally settled down, but Joe wasn't ready. Although he'd hoped they could do the trip together, Joe eventually left alone. Now he's back, and, on a night out with the lads, Joe bumps into Lucy, and they exchange an awkward conversation. Awkward because Lucy is quite clearly pregnant and wearing a wedding ring. Doing the maths, Joe knows the baby can't be his. And Lucy's married. Joe is numb with shock. It was 12 months ago when Lucy first toyed with the idea of starting a family, but Joe wasn't ready for that sort of commitment. They seemed to want different things from life. But now, seeing Lucy married and pregnant, Joe can finally see what he's thrown away. ____________________________________________________________ 'For Better of Worse' (ITV, Thursday, 10.35pm) - This documentary, which began following eight newly-weds back in 1998, paints a unique portrait of modern marriage as the couples deal with the issues that affect us all from love, sex and children, to money, health and careers. This time, the series returns with a two-part update as some of the couples are about to embark on their 15th year together. In 2005, when revisited for the 'Seven Year Itch', all of the original couples were still together, despite facing a host of issues and challenges. Since then, there have been affairs, separations, a divorce, a mental breakdown, a suicide attempt and even the development of an 'open' relationship. But who has stayed the course? And which marriages have foundered? Providing an insight into the highs and lows of each relationship, the series features footage of couples together and apart, talking candidly and in intimate detail about their marriages, themselves and their spouses. ____________________________________________________________ 'George Harrison: Living In The Material World' (BBC 4, Friday, 9pm) - 'Arena' broadcasts a repeat of Martin Scorsese's definitive portrait of the late George Harrison, taking viewers on a fascinating musical and spiritual journey from the former Beatle's early beginnings in Liverpool to becoming a world-famous musician, philanthropist and filmmaker. It weaves together interviews with his closest friends, photographs and archive footage, including early live performances - much of it previously unseen. The result is a rare glimpse into the mind and soul of one of the most talented artists of his generation and a profoundly intimate and affecting documentary. The programme includes contributions from Sir Paul McCartney, Ringo Starr, Yoko Ono, Eric Clapton, Sir George Martin and Phil Spector. ___________________________________________________________ 'Fergal Quinn's Retail Therapy' (RTE 1, Tuesday, 8.30pm) - In 2009, retail supremo Feargal Quinn worked with independent shops from all over Ireland and helped them to revamp, modernise and stave off stiff competition from multinational retailers. Now he has returned to see how these shops have fared in the intervening years and whether his advice has succeeded in transforming their prospects. __________________________________________________________ Movie Of The Week: 'City Of Men' (RTE 2, Wednesday, 12.20am) - A quality drama from South America that, despite the subtitles, is well worth watching. Two lifelong friends, raised amidst the turmoil of Rio de Janeiro's notorious Pool Hall Hill, attempt to navigate the treacherous maze of adulthood after celebrating their 18th birthdays and becoming caught up in the city's endless cycle of violence. Gritty and real.