That's unusual, I've never seen a Dolby trailer attached to a TV rip (or screening).
A 'raw' theatrical HDTV rip would be a good find - I'm finding the 1080i DC a bit tricky to conform to the theatrical audio. It's worth the effort, though - it's a terrific presentation of the film, and side by side with the Blu demonstrates just how misjudged that remastering job was.
Incidentally, the 1991 widescreen laserdisc appears not to be the reported 2.35:1, but rather an opened-out 2.20:1. I'm not sure if any other releases use this format - presumably it's what the 70mm prints would have looked like.
