It was an innnovative show, which made a (deadly) serious point with wit and panache - and some excellent songs. So, the text, at least, ought to be on record for posterity, even if there are no surviving film clips of the original production.

Greg, do you know if a definitive script survives - and if so, who owns the copyright? Surely it would be possible to publish it - on the web if not on paper - for future generations to enjoy and learn from.

Wassail!