Hmm... I'm afraid I don't really know much about the programming portion. The customer service line is 1-800-889-9950 and their hours are Monday through Friday, 9am to 5pm. They're usually pretty helpful and may be able to point you in the right direction.
You could also try going here:
Customer Service : Contact Us -- Discovery Channel Store
Under Employment, you should see "television programming" in bold. If you click on the "Viewer Relations" link, you may get some more information. (You have to fill out a form in order to continue, so I'm not exactly sure what would come up.)
Good luck!