This is not the Animal Planet show but it is a very good summary as to why we should care about amphibian decline and extinction. There's hellbender footage, axolotls, puerto rican crested toads, panamanian golden toads, etc. Well worth a watch at 12 minutes.
http://www.youtube.com/watch?v=QdzPXvx9aI0
http://www.youtube.com/watch?v=QdzPXvx9aI0