Tune in to CNN this Sunday between 7:15 and 7:30 a.m. eastern time. I will be on CNN Sunday Morning to discuss the prospects of the new left-leaning talk radio network.

The idea works a little better in theory than it does in practice. The theory holds that a dearth of liberals in talk radio means that the market is ripe for alternative perspectives to the dominant conservatism. This doesn't sound particularly outlandish. But this theory has been tested before. Ask Jim Hightower or Mario Cuomo how their radio careers are going, and you begin to understand that liberalism just isn't in demand among radio listeners. I'm all for new perspectives, but I'm not sure that the market agrees in this instance.

Besides, with liberals dominating the print press and television news, isn't an assault on talk radio by progressives a bit redundant?