Business has always come naturally to Barry Hearn. "I'm a great operator," he says. "The reason why? It's all heart. I really believe in what I do."
During the boom years of snooker Hearn and his Matchroom stable were the dominant force, built around the success of Steve Davis. "The BBC started networking a lot of snooker and I was just sitting there running the biggest chain of snooker clubs in the country," says Hearn. "It would have been more of an achievement to fail, quite frankly."
He signed such other stars as Terry Griffiths, Cliff Thorburn, Dennis Taylor and Jimmy White, and effectively became the strongest voice influencing the way snooker was run.
Now representing four boxing champions, Hearn aims for control of another sport. But as his snooker interests wane, Hearn is finding that boxing is a tougher world.
For three months an On the Line crew followed Hearn as he hustled his way through the boxing jungle. He remains ebullient and confident. "I run my life as I want to run it, so I'm only interested in winners."

A Walker/Turnbull production for BBCtv