I call him Alan too - but I've been working with him for 23 years now. In part it's because I knew him before the knigthood but in part it's because you don't call a friend "Sir". I know Bordan and Nick very well (and Claude a bit from a few years ago). Nick truly is one of the nicest people you could ever hope to meet - an utter gentlemen of the old school - though I was kind of surprised by him on the YF show last night! Equally Bordan is a thoroughly nice guy which I think came through in his interviewing and character summaries last night. They all call Alan, "Alan".
Cliff, Amstrad