If I've interpreted what I've read herein accurately, a station or group has the choice to buy the whole market or just a subset. If your station buys the entire NYC metro, it will show up in the main book and the various satellite market reports. But if a LI station only buys the Nassau-Suffolk subset, they won't appear in the total market report (and save a few bucks in the process), even if the station has enough listeners in the total market to qualify.
(David will be by momentarily to correct whatever I said wrong.)
(David will be by momentarily to correct whatever I said wrong.)