What's the best show about poverty, crime and crazy sex? It's 'Shameless.'

The Gallaghers aren't easy to love. In five previous seasons of Showtime's dramedy "Shameless" (which returns for a sixth on Sunday night), viewers have seen the members of this wild South Side Chicago family struggle with a poverty that affects both the pocket and the soul. Good at heart and bad to the bone, every character on the show will lie, cheat, steal, fornicate and worse, with a voracious appetite for self-preservation.