Dermot is one of the nation's best, and most-loved, television and radio presenters. He established himself as a presenter of Big Brother's Little Brother on Channel 4 before moving on to The X Factor on ITV. He has also presented on the BBC and has his own radio show on BBC Radio 2. Dermot O'Leary studied at Middlesex University, achieving a degree in Media and Television with Politics. Whilst at Middlesex University he developed an interest in comedy and was involved in various gigs in the students' union. He started as a disc jockey at Essex Radio before becoming a runner on the TV show Light Lunch with Mel Giedroyc and Sue Perkins. He was then part of the original presenting line-up of the channel's T4 strand, before moving on to present Big Brother's Little Brother (the companion show to Big Brother) on E4 from 2001 onwards.