Will the coaxial cables that bring pay TV and internet to about a third of Australian homes deliver a second-rate broadband service, compared to fibre-to-the-home? No, says the chief technology officer of Arris, the firm awarded a $400 million contract by NBN Co this morning to design and deploy the "next-generation" Hybrid Fibre-Coaxial (HFC) cable network. But sceptics remain.