David Dimbleby interview: celebrating 30 years of 'Question Time'

It's a glorious late summer's morning at David Dimbleby's palatial Sussex residence on the edge of the South Downs. (At least I'm guessing it's palatial – he did, after all, once sell his family newspaper business for £12 million – but our interview is being conducted well away from journalists' prying eyes in the agreeable converted barn he uses as an office.)

Among the off-limits subjects we shan't be discussing today are: His first wife, (cookery writer) Josceline; their three grown-up...