Anyone seen Bill Nye's algebra videos yet?

I was looking for old Bill Nye the Science Guy episodes on iTunes and stumbled across what looks like a new series: "Bill Nye's Solving for X." I also found two interactive classroom versions on DVD at Amazon (not sure what they have that the iTunes versions don't, but it's apparently worth about $25 more per DVD). I haven't watched anything but the preview yet, but I was sold when I saw him illustrating linear equations by crashing two trains into each other...

I'm downloading the two episodes from iTunes now. Can't wait to show them to my kids!

I've used the Pre-Algebra and Algebra videos and have had great reviews from most of the kids. Personally, I like the real-world application, but Nye doesn't go into depth with concepts or practice. Overall, the videos are great for beginner Algebra students.