That is a really superb clip from Duxford earlier this month. It's not ruined by silly synthesized music or commentary and you can actually hear the aircraft as they sound. There's been a lot of controversy over the Blenheim rebuild as the early Mark isn't so aesthetically pleasing, but I think that there's a growing appreciation for the history attached. And to see it in formation with the two correct-era Spitfires is unique.
I totally agree with Martin, an excellent video in all aspects, historically, aurally and visually. Thank you, Mauld