The excellent "Impossible Plays" gives a clue to why The Mysteries on video never made it to the NT shop, and why the Mysteries album was only available briefly in the eighties.

Basically the Cottesloe company of the time ceased to be supported by the NT high and mighties - read the book to find out the gory details. A similar punch up happened at Nottingham Playhouse in the 1960s.

Also I don't think Limehouse Films, who did the film, exist any more.

I too have VHS copies but at this rate will not have a DVD of Doomsday copied until....Doomsday.