SIGMA (verification service)
id:
sigma-verification-service-305-14880994
title:
SIGMA (verification service)
text:
SIGMA is an electronic verification service offered by Nielsen Media Research and is generally used for commercials, infomercials, video news releases, public service announcements, satellite media tours, and electronic press kits. It operates by encoding the SIGMA encoder ID, date of encoding, and time of encoding in lines 20 and 22 of the video signal, which is outside of the area displayed on a normal television screen. On a professional video monitor with underscan capability activated or a
brand slug:
wiki
category slug:
encyclopedia
description:
Television verification service technology
original url:
https://en.wikipedia.org/wiki/SIGMA_(verification_service)
date created:
date modified:
2021-09-29T00:30:21Z
main entity:
{"identifier":"Q7390331","url":"https://www.wikidata.org/entity/Q7390331"}
image:
fields total:
13
integrity:
14