Fine purveyor of TV ratings Nielsen has just found another way to monitor your home -- an official ABC app that uses the iPad's microphone to figure out exactly what you're watching (whether live or recorded) and offer interactive content on the fly. Pop-Up Video, anyone? Nielsen says the app uses the same audio watermarks embedded in most every US television show to do its thing (and thus doesn't, say, record your household conversations) so there's some serious potential for the concept to spread beyond My Generation, the single show it's been announced for so far. We'll just kick back and wait for the responsible parties to figure out we'd rather play interactive Jeopardy than figure out the size of
