Starting Monday, April 5, 2010, the PBS show Arthur is introducing a new character, Carl, who has Asperger’s Syndrome. You can read about the episode on the Autism Society website.
I don't follow Arthur regularly, so I can't comment on the program. But, TV is an excellent way for you to open a discussion on the condition with your diagnosed child as well as his or her siblings. Asperger's is a broad spectrum and kids will have a variety or behaviors. Watching the show together then lets you talk about things like how similar Carl's behavior is to your child's, and how the kids at Carl's school treat him, compared to the kids your child goes to school with.