Dragon's Den star Theo Paphitis has had a pop at his fellow multi-millionaire, The Apprentice's Sir Alan Sugar. Paphitis claimed that Sir Alan's show was like a glorified Big Brother. "They all live in a house and are given tasks - where do you recognise that? I don't think it's challenging any more." But could it be sour grapes? The final of The Apprentice pulled in more than nine million viewers, whereas Paphitis and his Dragons managed only 3.4 million.