Kids Woot has Sid the Science Kid DVD Bundle for $19.99 + $5 shipping = $24.99 shipped. There are two great bundles to choose from. These are selling for $6.99 to $9.99 each on Amazon with excellent reviews.
Sid the Science Kid is a half-hour television show for preschoolers produced by the creative minds at The Jim Henson Company. Join Sid as he questions why things are the way they are, and learn the scientific principles that answer his questions.