The snail mail would be

Broadcasting House
BBC
Llandaf
Cardiff
CF5 2YQ

I don't have an email but the BBC is formulaic (supposedly): first name - dot - last name @bbc.co.uk so it SHOULD be david.jackson@bbc.co.uk Having said that, I'd be surprised if there wasn't some other David Jackson in the Beeb somewhere. You can but try. I tend to do snail mail as I can do things like this on company letterhead which tends to be taken more seriously than email.

siân