new recording --- or not?

There are some pics and tweets of what looks like a JAM recording at the Oxford Literary Festival at the weekend. The team was Tony Hawks, Pam Ayres, Miles Jupp and the writer Felix Francis. It looks like a recording - the only thing that makes me suspicious is that sitting beside Nicholas is his wife Annie, blowing the whistle and keeping score!

Anyone know if this was a recording or just one of the occasional shows JAM puts on?