Topper, I have the scene you're missing cut out of the digital broadcast (TB version). I can share with you. Also, you may want to check my preservation of the HDTV version of TPM posted on myspleen. It has been completely resynced to the dvd version and all damaged frames corrected from other sources. Also, I did no color correction there, so you could change it as you like.

I also posted my avisynth scripts for creating the video, which you could alter to give the highest quality. You would need the source files, which might be a little tough to track down, but not impossible. For TPM, you'll just need the pal hV version and the german hdtv rip.

http://originaltrilogy.com/forum/topic.cfm/schormans-HDTV-Star-Wars-Saga-Preservation/topic/16702/