The Nielsen Company measures local quarter-hour television viewing in TV homes across 210 markets. There are 56 metered markets – including 25 local people meter markets, and 154 diary-only markets. Survey dates include four major “sweeps” in February, May, July and November with additional survey periods for various markets. Local people meter markets have 12 survey periods per year.
View local survey dates for the 2013–2014 Television Season here.