7. 3 0PM, DI S C OVERY This show is about fishing g for crabs. It should be the dullest thing on TV. But, somehow, it’s utterly compelling, and packed full of drama. Tonight we meet 23-year-old Captain Sean Dwyer. He’s determined to prove himself with the big boys.oys But does he have what it takes? Who knew a group of men in sou-westers could make such compelling TV? Not me.