Overview: By Design Just imagine it. Seven kids and every one of them a boy. You’d give up trying for a girl wouldn’t you? Well not Andrew and Jody McMahon. They wanted a daughter so badly they decided to have one more go. But this time, there was no rolling the dice. Like thousands of other Australian couples, Andrew and Jody headed overseas where it’s legal to choose the sex of your baby. Gender selection is banned here and often condemned as a first step towards designer babies. But for the McMahons, it’s nothing short of a miracle. Reporter: Tara Brown Producer: Sandra Cleary God’s Angels Get ready to meet some real teenage Hell raisers. Brianna, Savannah and Tess are trainee exorcists – all- American school girls who slay demons in their spare time. Armed with just a bible, holy water and a hand-bag-sized cross, they fearlessly take on the forces of darkness wherever they may lurk. And, nowadays, that seems to be everywhere. The Catholic Church is performing more exorcisms than ever before, while the girls can scarcely keep up with demand. And we’ll give them this much. They do put on one devil of a show. Reporter: Michael Usher Producer: Phil Goyen Chilling Out Liam Bartlett has just returned from a place so piercingly cold, it gives him the shivers just thinking about it. It’s not Antarctica or even the top of Mount Everest. No. It’s actually a tiny village in Central Siberia. In Oymiakon, it’s so cold your eyelashes freeze together and you’re constantly on guard against frostbite. If it’s warmer than minus 55 degrees Celsius, then it’s a good day. So rug up as we venture to the coldest town in the world. Reporter: Liam Bartlett Producer: Howard Sacre