Hunters are just as bad

Going through the channels today we come across a hunting program where they shoot an Elk. My first thought is how is this allowed to be shown on tv? Isn’t it cruelty to animals?? I guess this is supposed to be a “sport” which is what makes it ok. What I wonder is if some kids decided to just run over dogs for fun and videotape it would that be allowed on tv as a “sport?” If not, please explain to me how that is different.