This award-winning current affairs show returns for a new series which tonight sees reporter Marcel Theroux travelling to Chongqing in China, home of TF Entertainment, which is grooming candidates for the nation's next big boy band. The company's current group - the TF Boys - sing songs about school and puppy love, which have made them the biggest such band in China, where half a billion people listen to music online. Aspiring pop stars in China are inspired by US hip-hop, British punk and the slick routines of Korean pop. However, as Theroux reveals, they face the special challenges of working under increasing censorship and a deeply authoritarian government.