Nielsen Sigma Video Encoding

SIGMA Electronic Verification Services

SIGMA uses proprietary video encoding and monitoring equipment to detect video airings. The video is encoded prior to duplication/distribution and SIGMA picks up each airing 24 hours a day. The code includes a service provider ID, date, and time of origination.


Valuable Information

• Detailed information: market name and rank, station, date, exact time and duration


• Provides unmatched coverage in the industry. SIGMA is the only service that provides tracking of over 1500 commerical stations including over 175 low-power stations in all 210 US markets (including 50+ Spanish Language Stations)


• 100+ National Cable Networks


• Data is delivered the day after airing


• Program Identification: program name and type

SIGMA also offers an application that links the Nielsen audience data with cost data, providing information about how many people saw your video, as well as the estimated cost of airtime.