Social TV analytics start-up Bluefin Labs has raised $12 million of funding led by Time Warner investments. The company’s flagship product, Bluefin Signals, analyzes and organizes social media conversations about what viewers are watching on television in the U.S. It enables clients to use Bluefin’s data about TV shows and commercials in order to inform TV media buying and selling. Bluefin’s client list includes CBS, FOX, Discovery Communications, MediaCom, MTV and more.