Notice that it’s ranked #5 based on the 18-49 demographic! 🙂
I wouldn’t worry too much, cuz they also track DVR+7. Also, if you’re not a Nielsen household, it doesn’t matter at all.
From what I’ve read, streaming isn’t counted, or it only adds a small/insignificant amount to the tally. Streaming, of course, has changed the whole tv-watching viewing habits landscape, and the ratings mavens are struggling to keep up.