We're continuing our look at the year in social TV today (see yesterday's "#SocialTV Scorecard: 2012's Most Buzzed-About TV Characters" right here) with the infographic below, courtesy of Ad Age 's editorial partner Trendrr, the social-media monitoring firm.
A quick glance reveals some seemingly clear winners -- NBC as the most social network, and "SpongeBob SquarePants" as the most social show -- but both of those triumphs come with caveats: NBC got a huge boost from the Olympics; if you cut out all sports and special programming, Fox would actually be the most social network. And "SpongeBob" wins on sheer volume of social activity thanks to its heavy broadcast schedule, but on a social-activity-per-episode basis, "The X Factor" triumphs.
One winner without caveats: Apple iOS, which beats out Android and BlackBerry as the mobile platform most used for social-TV activity on Twitter, Facebook, GetGlue and Viggle.

Simon Dumenco is the "Media Guy" columnist for Advertising Age. You can follow him on Twitter @simondumenco.