Shark-human Interaction And Body Language Of Sharks

Most TV shows on sharks keep portraying the rather well-known whites, tigers, makos, and a few more of the larger shark species. This biased viewpoint gives the impression that only a handful of shark species, led by these large ones, and not over 500 species. Discovery's SharkWeek is a prime example of such a biased presentation. Why not go back to the roots and present knowledge instead of same o', same o'?