As the first BNO passport holders begin to make their way to the UK and start the path to a new citizenship, I take a look back at Hong Kong's history and how that special city-state formed its own identity. As SOAS's Professor Steve Tsang tells me: 'Not quite British, not quite Chinese'. We talk about how Hong Kongers yearned to find their Chinese roots, the fervour of handover and how 'Cantopop' (Cantonese pop music) took the mainland by storm.