It sounds like an animated version of "
Macintosh Basics"
(just beyond Hypercard... click the link for info, or the pic for sample screens).
There have been some machine-specific OBE (Out of the Box Experience) demos...
I remember some from SGI as well, for the Indy and Indigo... and OS X has had a few with all the foreign welcome text flying around or spotlighted.
Finding those might be a matter of getting the google keywords right.
YMMV