As w/ Planet Earth, this one disappeared shortly after you posted it.
They are both still available, I just checked.
As mentioned in the bulletin, please note the following:
1) It will not show the discounted price on the product page. You must add it to your cart and then "Checkout". At that point you will see a discount applied to the cart total.
2) If you do not see the discount as noted in #1 above, please empty your cart using the "Remove all" link and then close your browser (IE, Firefox, etc.) completely, and try the link again.
3) If you would like to order both, you will likely have to do two separate orders and follow the procedure in #2 above in between orders since the Discovery Channel website does not permit multiple discounts in a single order.
If you have any trouble at all with the above options, please
use this form to email me and I will do what I can.
Thanks,
- Shane Sturgeon