Last week, I was standing in a fly-fishing shop in a small town in Montana telling the owner I worked for the BBC Natural History Unit. "Oh, so you're from Bristol," was his reply.
OK, he was a wildlife fan and did then ask if David Attenborough was my neighbour, but it does illustrate that Bristol and the NHU's reputation go far and wide.
I joined in my late twenties to work on the Attenborough blockbuster The Trials of Life. I thought I'd stay for the three years it took to make the series and then move on.