audience measurement listenership audience research TV viewership 2.6 rating TV viewership TV viewership Audience measurement - Wikipedia P12-34 TV viewership Audience television viewership English audience measurement TRP’s are calculated TRP’s are calculated form an audience Viewership 2.6 rating television rating audience measurement English television viewership TV audience research Audience Audience Measurement ratings TV audience research audience measurement TV ratings audience share http://en.wikipedia.org/wiki/Audience_m easurement television viewership TV viewership television viewership ratings adults English TV viewership P12–34 audience share TV audience research English English printin toteutuneita kontakteja TV viewership ratings P12-34 TRP’s are calculated English English TRP’s are calculated audience share audience share English TV ratings TV ratings English TV viewership television viewership television viewership TV audience research English English audience share adults audience share English TV ratings P12–34