Here's a question....did all of the SW movies see a TB-Broadcast release in theatrical form?
The thing with these DTS soundtracks....is that they are theatrical audio...not the DVD version audio and as far as I have read....the PT theatrical releases did have some adjustments made to them when they were released on DVD so if there aren't any "theatrical"versions available in HQ they'd have to be re-created....like Ady's TPM Theatrical release with color correction.
The 97 SE versions (pre-DVD??) did see a broadcast but, if all else fails....a new Laserdisc and/or VHS transfer might be in order to make things work best.