camroncamera said:

The GOUT image... It's like the original telecine process was transfered at 16:9 anamorphic and was converted to 4:3 letterbox at the mastering stage (and caused all of that awful aliasing) by throwing out every other scanline like yesterday's bagels.
I don't know how, but I believe you found all those scanlines that they tossed away, then rolled them in sesame seeds, added the most amazing cream cheese, homestyle berry preserves, smoky lox and toasted it all so that is 9 times better than when the bagels were fresh to begin with. That's how good this work is.

Truth is, I don't even know if 16:9 anamorphic standard definition video was even used during the (pre-DVD) Laserdisc era for feature film transfers, so I don't believe that those "missing scanlines" of the GOUT were ever even in any video signal from the telecine machine on down the video chain. I know HD video had been in development for several years at the time of those film transfers, but pretty much as R&D only.

Still, in the back of my mind, I wonder if there might be a 16:9 anamorphic D-1 tape straight from the Star Wars telecine session floating around. If a very early scan converter was used to convert this (hypothetical)16:9 anamorphic film transfer to 4:3 letterbox format, and that subsequent 4:3 tape was used as the Laserdisc master, that could explain the heavy aliasing of the GOUT. If Lucasfilm returned to these scan-converted transfer tapes to produce the 2006 bonus DVDs (erroneously believing them to be the best existing transfers of the Original Trilogy), they had missed the opportunity to use these hypothetical anamorphic original transfer tapes instead.

No, the aliasing is just a side-effect of the telecine process. One field is scanned, then the other, the data is written straight to videotape and the process is repeated until the film is done. If the odd and even lines are slightly misaligned then you get aliasing.