Well, I've finally been able to download some episodes. I've downloaded episodes 597 and 1957 (as well as a few from volume 1), in part because Muppet Wiki doesn't have full guides for those episodes yet. These episodes are enjoyable. I'm epsecially enjoying many of the animation and live-action films I didn't know about (and hadn't seen pictured on the wiki). Episode 1957 has an interesting cartoon/film with a talking letter N. At the end of that segment there are kids going to bet and they are shown with two books from "The Sesame Street Learning Kit" (The Sesame Street Book of People and Things and The Sesame Street Book of Puzzlers).
Episode 597 sure does have a lot of segments on wet and dry, particularly animated segments. And it includes a series of blackout segments I don't recall knowing about, with an announcer saying "Presenting the (insert item here)", with whatever item (plunger, pencil, saw) blacking out the screen. There's a segment with Kermit and Trey talking about the letter Q, with Trey drawing a Q with his finger (this segment was not listed in the Muppet Wiki page on "Muppet & Kid Moments: Kermit" so I added it). And there's a Roosevelt Franklin sketch I knew about for years, teaching traffic, but what I didn't know was that Roosevelt Franklin was hardly in it. Instead, he let Baby Breese teach traffic, and there's a bit of focus on his classmates.
Episode 1957 has some great stuff. The street scenes all involve voting. Snuffy's mommy makes an appearance, and there's a scene with several of Oscar's elephants sticking their trunks out of his trashcan (an image that I had previously seen in Sesame Street Unpaved).
After finally downloading some of these episodes, I was surprised to see that there were no added copyright credits regarding Kermit the Frog, or that the ending PBS logo was absent (not as surprised about that, though, but considering it was on the Old School releases it is surprising).
In the past, on Sesame Workshop's facebook page the company had allowed fans to nominate clips for the 40th anniversary DVD (and on Amazon allowed fans to vote for a clip to include), vote on material to include in the 40th annversary book, and allowed fans to vote on clips to include in the upcoming Best of Sesame Friends release. It would be great if they allowed fans to vote on what to include in the next "Sesame Street Classics" volume. Actually it'd be great if they would allow fans to nominate what to include, whether it be speciffic episodes or just seasons.