I found this clip (free to view) of this performance https://www.bbc.co.uk/programmes/p026v9zq If anyone can grab this video then feel free - it's only 3 minutes in length The only other video I have seen of it is a poor quality one on youtube here So we can safely add to the show's details that the BBC studios programme was actually called "Arena: Salman Rushdie - The Ground Beneath His Feet"
I've been wanting to see that whole documentary for years - I've only ever seen a minute-and-a-half clip of it in terrible quality. Maybe they'll repeat it eventually...