Self filmed would be cool, or you could do like Fred Bear and have a cameraman with you, so you can film, then hand off the camera when you're ready to make the final stalk and take the shot.
I think the latter will give you better opportunity to actually succeed in your hunts.
I remember the one thing about watching Tred Barta years ago was that I was turned off by the fact that he never actually killed anything on the episodes I watched. It just felt like a guy chasing animals around for half an hour, and I didn't really have much respect for him as a hunter. Of course, I understand that "chasing animals" is 90% of what hunting is, but when you have all year to put together your best footage, I would think that you would actually have some harvested animals to show for it.
I do think though, that the typical hunting show now, is kind of a long obnoxious commercial just showcasing products and kill shots. It would be nice to see all that goes into actually hunting, but it would be nice to have a happy ending as well.
Anyways, I think there would definitely be interest. We certainly do NEED a decent hunting show. I'm just not sure if there would be enough interest to convince a TV channel that it will make them enough money to warrant a time slot.