WHEN HOBBIES GET STRANGE AND SERIOUS

It's good to have a hobby, but these things can escalate, as American journalist David is discovering in his new show, speaking to guests about their niche interests, bizarre collections and all-consuming passions that have probably caused many a slammed door and ultimatum over the years.

- With KAY HARRISON

Like actor David Arquette's obsession with Bozo the Clown, which led to him buying the global rights to the children's TV character. And 46-year-old reluctant influencer Jian Yang, who shares his home in Singapore with 13,000 Barbie dolls - the second biggest collection in the world, closing in on her Nol fan in Germany. Only 5,000 more to go, Jian. Must try harder.