My 2-year-old loves this video.
I bought the DVD version of this recently because I was at Eichler's looking for something else and my 2-year-old became utterly transfixed by the Muppet-like creatures singing Dayyeinu on the in-store TV screen. I had been trying to get him psyched for the upcoming holiday, using various books and just telling him about it myself, but wasn't getting very far, so the fact that he was interested was important to me. Anyway, I just bought it two days ago, and now he asks again and again to see "Matah Ball" and goes around singing Dayyeinu. The storyline is perfect for a 2-year-old -- which is to say, pretty hard to take for an adult. But the video is doing what I was looking for -- getting him psyched for the holiday -- so I'm happy. (I just wish they sang the four questions in the video, so he'd be trying to do them as well! That would be cool.)