By founding Google, tech titan Sergey Brin helped shape the internet. He also got very, very rich, as his company Alphabet became one of the biggest in the world. BBC business editor Simon Jack and journalist Zing Tsjeng tell the story of the billionaire who partied on planes after escaping prejudice in Russia. Sergey Brin and his best friend Larry Page became two of history’s biggest tech giants by building the planet’s most popular search engine. How did their technology startup become one of the world's biggest companies? Simon and Zing find out, before deciding if they think he’s good, bad, or just another billionaire.

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Golfing superstardom made him incredibly rich. Personal disasters nearly took it all away. How did Tiger Woods go from a child golfing prodigy to the world’s highest paid athlete for a whole decade? BBC business editor Simon Jack and journalist Zing Tsjeng explain how one of the greatest golfers of all time broke barriers in his sport, winning 15 major golf championships and 82 PGA Tour events. He’s an inductee into the World Golf Hall of Fame, won the Masters five times, the PGA Championship four times and both the Open and the US Open three times, as well as helping the US win the Ryder Cup. High-profile sponsorship deals and business ventures made him a billionaire, but then came affairs, car crashes and scandal. Simon and Zing track the spectacular rise of this global sporting superstar, then decide if they think he’s good, bad, or just another billionaire.

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How one social media site birthed an empire. The story of Mark Zuckerberg and Facebook.

BBC business editor Simon Jack and journalist Zing Tsjeng take us from Zuckerberg's childhood to joining the billionaires' club at just 23, then on to his current status as one of the four richest people on the planet. He dropped out of Harvard to mix with other founders in Silicon Valley, and still retains absolute control over his company, now called Meta.

From buying up Instagram and WhatsApp to getting investments from Peter Thiel and Bill Gates, Simon and Zing trace Zuckerberg's spectacular rise. Plus discover what was true and what was made up in David Fincher's film about him, The Social Network.

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From The Exorcist to 400 companies: how music sent Virgin entrepreneur Richard Branson into space. He's an island owning adventurer, but he's incredibly shy. He's the record label owner who doesn't even like music. Journalist Zing Tsjeng and BBC business editor Simon Jack try to understand a man of many paradoxes and ask whether he's good, bad, or just another billionaire.

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He's spent a billion on Manchester United, but how did Jim Ratcliffe become a billionaire?

BBC business editor Simon Jack and journalist Zing Tsjeng learn how the Premier League club's new co-owner got rich via some daring investments and impressive acquisitions. They explain how he made his name in petrochemicals before founding Ineos, one of the industry's biggest conglomerates.

Simon and Zing also discover that he mortgaged his own house to fund a business, as well as uncovering his investments in cycling, sailing and, of course, football. Then they decide if he's good, bad, or just another billionaire.

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How Bernie Ecclestone won control of Formula One, and how it all came crashing down. BBC business editor Simon Jack and journalist Zing Tsjeng trace a unique rise and fall. From modest beginnings selling second hand cars, Ecclestone built Formula One into a one-man empire worth billions. How did he go from the very top to tax fraud, and is he good, bad, or just another billionaire?

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How mining magnate Gina Rinehart amassed a $30 billion fortune to become Australia's richest person, but also earned a reputation for being highly litigious.

BBC business editor Simon Jack and journalist Zing Tsjeng uncover a woman who has taken legal action against her father's widow, her own biographer and the biggest mining company in the world, and who has been sued by her own children, twice.

They follow Rinehart's story from her outspoken father's discovery of huge deposits of iron ore in Western Australia to inheriting the business and turning it into a multi-billion dollar powerhouse. It's a story that takes in secessionist politics, indigenous land rights and lots and lots of family feuds.

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How oilman Charles Koch turned black gold into dark money. BBC business editor Simon Jack and journalist Zing Tsjeng investigate the feuding family that has shaped US politics for decades. The Koch family battles made “Dallas and Dynasty look like a playpen” with brother against brother, and even twin against twin. But Charles Koch succeeded as heir to the oil fortune, and spent the billions earnt from oil creating a right wing political network dubbed 'The Kochtopus'. So is he good, bad or just another billionaire?

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Journalist Zing Tsjeng and BBC business editor Simon Jack uncover the huge public feuds and private legal battles that made the most famous woman in the world. She can change the economy, but is Taylor Swift good, bad, or just another billionaire?

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How Warren Buffett became the richest investor in history, amassing a fortune of over $120 billion, without moving from the Nebraska home he bought in 1958.

BBC business editor Simon Jack and journalist Zing Tsjeng discover how Buffett earned his first money as a six year old, bought his first shares at 11 and filed his first tax return at 13. He went on to formulate his own investment philosophy on the way to becoming incredibly rich.

Simon and Zing reveal Buffett's biggest deals and pithiest phrases from his decades of investing, as well as his unconventional love life. Then they decide if he's good, bad, or just another billionaire.

We’d love to hear your feedback. Email [email protected] or drop us a text or WhatsApp to +1 (917) 686-1176.

To find out more about the show and read our privacy notice, visit www.bbcworldservice.com/goodbadbillionaire