I think the box was an GVP G-Lock genlock.
With that and an Amiga (of course ;-) ) and Scala for titling
you can make some good videos.
The new CDRom version of Scala MM400 is dongle free (yeepee!).
As for Scala InfoChannel IC500, I don't know where you can find it, as the lucky dogs that owns a copy aren't disposed to let it go ;-)