Go here and click on "select a country to begin" to request your copy. Supplies are limited, and it will take three to four months for your DVD to arrive. But if you have kids who love trains, I'm guessing this one could be worth the wait.
The new mother of seven, I'm also a journalist who is using those skills to search out the best cheap deals out there. All the while, I'll keep in mind what my Dad used to say: "It isn't a bargain if you don't need it."