At one point, they had a Cookie Monster the same exact size as the one onscreen dancing around, leading to an awkward moment of 2 Cookies on Screen with no distinction that it was a promo until 30 seconds later when "You are Watching The Cookie Thief" finally popped up.
Yeah, I noticed that too. It threw me off when it first came on. Too bad they couldn't have made the promo as a joke during the special (like the 'Shovin' Buddies' promo gag on Family Guy).
Guard: "Aha!
You stole the cookie art!"
Cookie: "No, no no! It not me! It...it..."(points down)..."Cookie imposter in awkwardly-placed promo for special people already watching! (Promo Cookie runs away) "He go dat way!" (The guard and the penguins chase the promo while Chris, Elmo and Cookie run in the opposite direction).
We'll see what the DVD release has to offer. The best part for me was Prairie's last line. I hope on the DVD they have some mention about Fran's work on Sesame, even if it's just a blurb on the Extras menu. (It would be fun if she did commentary for the special as one last voiceover gig, but it probably won't happen).
I was also surprised to see Walter's cameo. For the Sesame Street: 40 Years of Sunny Days DVD, they had to blur out Miss Piggy and a few other Muppet Show images. When the DVD comes out, I wonder if they'll blur out Walter too.