Aside from the recording quality, it was an interesting program. I loved the presenter - he was so stiff and formal, but trying (in a forced way) to be casual and relate to the camera audience. Brilliant! The audience looked either scared or bored, and the sixties style lent them an air of a collection of Star Trek extras. They rarely smiled, but clapped politely at the appropriate moments.
The Quartet were good, but in this setting exuded an air of being an exhibit, a novelty item for the viewer and audience to marvel at. There was no interaction or feeling between the audience and the performers, which gave it a very staid, formal feel. Paul Desmond was on alto, and had a beautiful tone - one of the nicest I've heard (I'm a sucker for a smooth tone)! Brubeck sat with his back to the bass and drums, facing the alto, a more unusual setup. But I suppose it is his quartet, so he should be centre stage.
There's another episode of Jazz 625 up on iPlayer (the Dizzy Gillespie Quintet) - I hope it's of a better recording quality than this one was!