Hahaha. I enjoyed that one immensely, Astro...
I'll provide my own indepth review here:
Episode IV: A New Hope
The original masterpiece that launched the greatest movie saga of all time and fundamentally reshaped Hollywood culture... has changed. In some ways for the better, in some ways for the worse. Specifically:
Good: the image quality is drastically improved over the VHS version, and for that matter over the theater version we saw of the SE. Visually, this is a masterpiece; never in its life has Star Wars looked so good. A few minor complaints here include that C-3PO is just a tad bit too shiny in a couple of places, some of the colors seem too bright and vibrant for our "lived in" Star Wars universe, but these complaints are minor. The sound has some good: it now has at least a form of Dolby 5.1, and for most of the movie it's pretty good. It's certainly cleare and more distinct than ever before. The lightsaber re-rotoscoping for the Obi/Vader battle is really nice to see, though it still has a couple of flaws.
Bad: The sound got me the most, I think. When the X-wings start their run on the Death Star and all of a sudden you CAN'T HEAR THE FANFARE that John Williams wrote, that's really frustrating. That fanfare MADE that moment. I also dislike most of the SE stuff in this one. The updates they did on making the fight scenes in space look better are a 50/50 split, but the stuff with Jabba makes me want to puke, even with the new model they put it. It just doesn't work. Last, Luke's (green? blue? pure white?) lightsaber is not good.
Episode V: The Empire Strikes Back
Undoubtedly the best of the original trilogy in terms of maturity, directing, etc, this film remains the best in the DVD version. Here, the good far outweighs the bad... mostly.
Good: the image quality improvement seemed even more drastic here than in ANH. Everything is so sharp and clear. The biggest difference, I think, was in the base on Hoth, when you see Han working on the Falcon or Vader striding through the battle-damaged corridors. Positively incredible. The redone effects for laser blasts are a good change, too, I think. Sound-wise, this one is incredible. John Williams' score is perfectly balanced with the effects throughout the movie, and the effects themselves are cleaner and crisper than ever before. Brilliance. The lightsaber scene looks much better, and matches up very well with the prequel trilogy, though this fight is much more cinematic because of our involvement with the characters.
50/50's: Temuera Morrison's voice as Boba Fett. Neither here nor there, this didn't bother me. The SE addition of Vader's shuttle flying up to Executor. Again, neither here nor there.
Bad: I don't like the new version of the Vader/Palpatine scene. The emperor doesn't look quite right; his head isn't as large and dominating as it was before and somehow Ian McDarmid just doesn't sound as evil as he does in ROTJ or as Clive Revill did as Palpatine before. Nor does the new dialogue work for me, though it may fit better with Ep. 3. And for this one, that's it! It's that good.
Episode VI: Return of the Jedi
Often viewed as the most "kiddie-iffied" of the original trilogy, this movie critcally standing lacked the impact of the first two, yet remains a strong contender in movies in general.
The Good: again, image and sound quality are better here. It's not as noticeable, because as has been noted before, the Jedi master was in the best condition before; it had been filmed a lot more recently. However, the improvements visually in the lightsaber scenes are dramatic: Luke and Vader's lightsabers both look much more like the prequel sabers. Both (especially Luke's) are much more clearly defined, from the beginning of the movie at Jabba's Palace to the end scene between Luke and Vader. Audio wise, this one doesn't show much improvement, but then the audio was fantastic to begin with.
50/50's: for me, the Hayden Christensen thing is a wash. I don't think it was a need, but it doesn't ruin the movie, either. Same with the city scenes at the end; they don't hold up to the PT, but they're not terrible, either. They go neither way for me.
Bad: I still dislike the "Jedi Rocks" musical number, but the skip button works wonders with that... and that's really all I can complain about. This one was good, too, though it didn't match Empire.
And looking at this movie again, the Ewoks really aren't that bad. Sure, they're a little childish, but the concept is kind of cool. And I think we'll see echoes of this scene in Sith (though I shan't spoil anything for poor blokes like Astro...)
Scores a 9/10. The added features are very interesting; Empire of Dreams is a must watch and the other stuff, including on the evolution of the lightsaber, is very interesting as well. The updated effects, visual and audio, are very nice, and the trilogy performs well. Despite the down points cause by some of the SE stuff, this is still a masterpiece.