I'm glad to see that Here Comes the Puppets is online. Previously, footage of the Muppets (as well as a few other puppet acts) from that festival were on YouTube, without the whole special, but I think that's been taken down. And I wonder if they did multiple performances. I haven't actually watched the whole special yet, just bits and pieces (skipping to different times), and noticed a difference in the Oscar and Bruno portion. At first I thought it was just a different camera angle from what was online, but then came the part where Oscar told Bruno to say hello. In the footage that was previously posted, it was obvious Caroll Spinney had trouble getting Bruno's mouth to move, but in this that part's not shown (and it doesn't look like it was cut from the special). Also, in the old footage, Bruno's voice sounded a bit quieter, almost like he was saying "hello", but here he clearly says "Well, uh..." (which was noted at Muppet Wiki, I wondered if that was an odd mistake).
It was also interesting seeing Charlie McCarthy on display. That's the first time I saw him without his hat, but I didn't think he was bald. I also enjoyed that performance by Shari Lewis dancing with a full-body puppet, almost Oscar and Bruno-style.