This is the Sesame Street Season 39 Highlight Reel from the press kit. Season 39 begins 11 August 2008 so don't miss it!
Parodies (known so far):
"30 Rocks" (based on 30 Rock)
"Pre-School Musical" (High School Musical)
"Are You Smarter Than an Egg Layer" (Are You Smarter Than a 5th Grader?
"Plain White T's" (Plain White T's)
"Feist 1234" (1, 2, 3, 4)
"Dirtiest Jobs with Mike Rowe" (Dirty Jobs with Mike Rowe).
Celebrities (known so far):
Jessica Alba, Will Arnett, David Beckham, Jack Black, Kim Cattrall, Lorena and Lorna Feijoo, Leslie Feist, Neil Patrick Harris, Jonah Hill, Randy Jackson, Heidi Klum, LL Cool J, Jenny McCarthy, Megan Mullally, Sandra Oh, Mike Rowe, Jason Taylor, Tilly and the Wall, Patrick Warburton, Brian Williams, Chandra Wilson
And not all the parodies/celebrities are featured in this highlight reel.
This video was from rkshop.org/aboutus/pressroom/presskits/season39/clips.php
Other information from Muppet Wiki - n_39_%282008%29
This video belongs to Sesame Workshop.