Just had to add that while I may not travel enough to qualify as a host of a Travel Channel show, I have had opportunities to see many major areas in the U.S. Hilton Head to me was something out of a movie. The Disney resort is on the marsh, and I had never been so close up to a marsh. I fell in love with it, so much so, that when I got home, I missed it, and commissioned an artist from Savannah to paint me the marsh in summer so that I'd always have a little bit of it with me.
You've got the marsh, with all its unique wildlife, the hundred-year-old live oaks with Spanish moss draping them, and so many plants and shrubs that are particular to the area (take the tour at the resort - they'll identify everything for you). I ran over to the Audobon store for a bird guidebook and sat each morning with coffee, binoculars, and the book on the porch, bonding with nature.
I've spent ten years in a row vacationing on the New England coast. The "beach" is totally different in Hilton Head. The water is so shallow that you can walk out quite far, and because it's so shallow, it's bath-water warm. The sand is packed tightly, again, because it does not have the tossing waves affecting it, so it's smooth enough to ride a bicycle on, and you'll see that many people do.
The tourism takes a different form there too, as there are no obvious cute little towns like in Cape Cod. All the communities are tucked away from the streets and are surrounded by vegetation, and, in most cases, gates.
We are busy counting down our days to our next visit there.
Here's a site I got from this discussion list that will help describe it better than I can:
http://ttowery.tripod.com/
Hope that gives you a better idea of what you're in store for.