This final note today, in which Facebook goes toe-to-toe with television — and wins, it looks like.

The social networking company commissioned the good people at Nielsen to do a survey: How many people between the ages of 18 and 24 are using Facebook during television primetime?

You know where this is going, right? Facebook gets a full 50 percent of those eyeballs, half of television viewers between 18 and 24 — more than any one of the four broadcast networks.

That perhaps explains this item we saw on Bloomberg today. That Facebook is considering selling television-style ads on its site for $2.5 million a day.