Two key insights about the state of political advertising on television, courtesy of the good folks at Echelon Insights:

At some point, groups that aim to move the electorate have to ask whether one more television ad is going to get lost in the noise — particularly in Alaska, Iowa, and Colorado. Sure, the ad tests well to the focus group, but they’re sitting in a room, undistracted, eating cookies, paying close attention. Once they’re sandwiched in between two other ads by groups with contrary messages, the message probably doesn’t penetrate as well.

By comparison, Michigan, New Hampshire, and Georgia have considerably fewer political ads on the dial. A group that wanted to elect a Republican Senate that was absolutely determined to spend its money on television advertising might find that a more useful area

In the second insight . . . God help the television watchers in Colorado: