I've had this in my cart for a couple months now and it just dropped to $6.50. It's the COMPLETE Carmen Sandiego series. These are excellent geography shows.
My 8 year old somehow manages to memorize everything she sees on television. It's a disturbingly worrisome gift, but a gift nonetheless. Obviously, we monitor what she watches very closely. This is an educational show I can feel good about her memorizing.
The Amazon prices rise and fall a lot, so if you're interested, you might want to grab it quickly before it goes back up.