Date: Sat, 16 Dec 1995 13:37:42 -0500
From: Ronald Butters amspeech[AT SYMBOL GOES HERE]ACPUB.DUKE.EDU
Walt Wolfram responds:
I'm not sure even the producers know how many versions there are.
They also would have the study guide that I prepared and should send
it freely to those who need it. I could, however, make a copy of it.