There are things better than Sesame Street?
I only know that Raul Julia appeared in the first two Adams Family movies, and only know that Charolette Rae appeared as a regular on Diff'rent Strokes and starred in it's spin-off, The Facts of Life. While many of those are bigger, and while they are all good, I wouldn't neccessarily call them "better" than Sesame Street.
Getting back to topic, I liked seeing Sam the Robot. And I finally got to hear his voice. Oddly enough, I kept thinking that he sounded like a Frank Oz character (must have been the synthesizor..... and I highly doubt that Oz would have originated the role because he hated performing full-body characters). I also liked seeing Kermit's lectures on big and small. I never knew that that lecture and the one on big, bigger, and biggest were actually a two-part skit. I saw a Muppet Wiki page for one episode featuring both skits, but I figured that they were meant to be seperate skits that just happeend to have a similar theme and just happened to be shown in the same episode. And it's interesting that Frank Oz performed the voices for all three monsters in part two. I would have expected Caroll Spinney to have voiced at least one (I'm not sure if Spinney actually performed in that skit or not). And if many of the voices were recorded seperately (could the entire audio have been pre-recorded?), then I wonder why Jim Henson didn't perform the vice of any of the monsters (he could have used his Rowlf voice for Splurge). And it looks like there were five performers in that skit (one performing Splurge's right hand, and maybe also his left). That means that there were at least five performers in the first season.
However, after watching these, I learned of what episodes will be on the Old School set. It has the first five premiers. I think that, out of respect for Sesame Workshop and Sony Wonder, it would be best not to watch anything on You Tube that we know will be included on the set. After all, we want the set to sell well enough for a second volume to be mad,e right? I saw that the entire first episode was uploaded on You Tube a long time ago, in a few different parts, but held off on watching them because I figured the first episode would definately be included in the set (out of what I didn't know at the time, I was most sure of this being included).