At the closing ceremony
of the programme tonight, we will have, as usual, the chimes and bongs of Big Ben.
Before then we'll hear from our reporter Christopher Landau who will "mark 150 years since the casting of Big Ben at the Whitechapel Bell Foundry…
where bells have been made since 1570, possibly earlier. And this is
Alan and Kathryn Hughes, whose family has run the business for over 100 years - they're interviewed on tonight's programme. "