Analysis

Ratings and gross rating points (GRPs) each have certain advantages that make them valuable analytical tools. Their differences make them suitable for diverse treatment and purposes.

Scheduling

Do viewers stick with public TV from one show to the next? Do Nature fans stay tuned for Masterpiece Theatre? Or NOVA viewers keep their seats for Frontline (1988)?

Public broadcasters assume TV breaks are important because they're a chance to talk to our viewers for "free" and they make money from underwriters. But are they really important and effective? Do programming promos work? Are the underwriters getting what they pay for?