Advertisers do pay to reach demographics on Hulu - just look at all the advertisement breaks in videos on Hulu. The problem is that there is no distinction betw

Advertisers do pay to reach demographics on Hulu - just look at all the advertisement breaks in videos on Hulu. The problem is that there is no distinction between Hulu users who also watch Television and Hulu users who do not watch television; this compounds the problem of not knowing if the Hulu users who watch Television are a sufficiently representative sample of Television viewers to predict whether a show would succeed. Which is probably what you meant, but your phrasing was (to me) a bit off.