I am so glad to see a rundown of the episode.
I was surprised by how soon the adults believe Big Bird. I was expecting it to happen in the second to last street scene. Though now I realize that it doesn't start that soon - they begin to believe Big Bird in the third street scene. In hindsight, I kinda feel it'd have been better for each adult who believes Big Bird to start in a different scene - like, Maria could believe Big Bird first, then in a scene or two Gordon could, then in the next scene Linda could.
I really want to see that scene where they do believe. Hearing about the sun rising and Olivia saying it's the dawn of a new day sounds like a really epic scene (and a metaphor for the fact that some adults believe him now - and the one saying the line is one who still doesn't). I imagine drum beats being heard as it happens.
For an episode about Snuffy, it seems like he only appears in one scene. And funny how in an episode where they start to believe, Snuffy says he doesn't believe that they will ever believe.
I wondered if maybe Noggin didn't air it because there were too many segments that aired in other episodes on the channel, and I don't know whether that would be criteria for choosing/excluding episodes. Looking at this guide, it seems like most of the segments are in other guides (don't know off-hand whether all the pictured segments were in other episodes on Noggin). There doesn't seem to be any really sought-after clips, nothing too rare (well, maybe the segments that don't have pictures in the guide, not sure if they're not in any guides or if nobody on the wiki could determine what the segments are yet). I did notice that it has a lot of segments that appear in the three Old School volumes. Of course, I don't recall knowing about that segment pictured where Telly pretends to be animals, that actually looks interesting. And it is fitting that this episode has the segment where Ernie and Bert go to Egypt.