John Borland writes: "... In late December, Nielsen is finally taking one of several steps aimed at adapting to this new audience. Ratings will be broken out by how shows are watched--live, later in the day or within a seven-day period. Over time, Nielsen will also move to measure viewing that takes place via iPods, cell phones, laptops and other digital devices that are gaining TV privileges. The company also will track audiences for on-demand fare. ..." Link: CNET News.com.