Trendrr

Trendrr home page

"Trendrr.TV is a comprehensive service for networks, studios, brands, and agencies that incorporates multiple social and syncopated data sources tracking all major networks and shows. Total Activity is Trendrr.TV's proprietary tally of social media activity: Twitter mentions, public Facebook posts, GetGlue check-ins, and Miso check-ins."

Basically, they monitor various social media channels for mentions of actors, characters, tv shows etc. They aggreagte this data and produce high-level rankings of most talked-about content. They can track sentiment, buzz etc. and then try to cross-reference with demographics. The high-level rankings are free on their site.

If you pay them, they give you all sorts of deep analysis.