Call someone 'Shameless,' win $500

Last week Shameless returned for a third season on Showtime. Bolstered by a mighty cast that includes William H. Macy and Emmy Rossum, the series follows the Gallagher family, a dysfunctional clan that exhibits behavior reflective of the series' title.

Showtime is promoting the dramedy's return with the Shameless Awards, an online competition that asks users to nominate "shameless" people in their...