Exit, a program of La7, is a great way to give your ears a workout.
Exit is a current affairs program hosted by Ilaria D'Amico. The show tackles current events and the guests typically are well-placed officials and persons in Italian society. The show brings together guests who take different stands on certain issues, and then questions are posed and discussion ensues.
I really enjoy this program because it touches upon some really hotbed issues facing Italy -- trash concerns of Naples, food safety, immigration, politics...among many others. Many of the past episodes can be viewed online, and Exit also has a blog where you can leave comments after watching an episode.
You also get a good mix of accents and ways of speaking, and it's a great way to learn new words. This is a great program for the Italian learner at any level and an even better way to stay connected to Italian current events and culture.