"Dragons' Den" offers entrepreneurs a chance to pitch their business ideas in front of five venture capitalists willing to invest their own money in exchange for equity. Genius inventors might be a hotly prized commodity, but the fastidious Dragons will only invest in ideas that pique their interest. The pitchers must try to secure the total amount of funding they requested at the beginning of their three-minute pitch. If a Dragon offers less than the full amount, the entrepreneur must try to secure an alternative (or joint) investment from one or more of the remaining Dragons. The line-up of Dragons has changed a number of times since the show originally aired on BBC Two in 2005 but the most notable ones have been Peter Jones, who made his millions in telecommunications; Duncan Bannatyne, who made his fortune through health clubs; Theo Paphitis, who is known for his triumphs in the retail sector; and Deborah Meaden, who works in the leisure industry. Private equity businessman James Caan appeared in the Den for four series before he was replaced in series nine by businesswoman Hilary Devey. Jones and co are only interested in seeing a return on their money, so they have little time for pitchers who are unable to offer them a viable profit-making machine. Presenter Evan Davis is on hand to offer the pitchers a celebratory handshake or a shoulder to cry on.