The transfer on the 1990 and 1992 pan and scan tapes was identical to all the VHS releases since 1982. My copy was from '92, and you still couldn't see the Tusken Raider in Luke's binoculars.

The only difference between any of the VHS'es is that the ones from 1985-92 have the new "digitally mastered" sound mix with 3PO's tractor beam line. All of the 82-92 P&S VHS releases have the wrong (80s) Fox logo at the front, proof that the same video master was used for that whole time (though at least the 1985 mix has the correct fanfare).

There is only a cosmetic difference between the 1990 and 1992 versions. The CBS/Fox Video logo and "Collector's Preview" intro screen/announcement were replaced with a Fox Video logo and preview intro screen/announcement, and the CBS/Fox mentions on the packaging and labels were replaced accordingly.

Everything from the trilogy preview to the end of the tape are identical to the 1990 version, right down to the long copyright screen at the end of the trailer that still mentions CBS/Fox, and the unchanged "Check for title availability..." and "Feature presentation" screens.

In fact, the 1992 versions are sometimes hard to spot without watching the actual tape. Why, you may ask? Because some of the 1992 copies still had CBS/Fox boxes and/or labels! My old 1992 copies of ESB and ROTJ came in 1990 CBS/Fox packaging with CBS/Fox labels. Even my 1992 copy of ANH, which did come in a Fox Video box, still had a CBS/Fox label!

In short, don't bother. The 1990 version only has the new trailer, and the 1992 is for all intents and purposes the same as the 1990.