Cable networks proudly announced that cable networks grabbed more upfront advertising dollars (commitments from advertisers for the upcoming season) than the broadcast networks were able to generate. Cable got $8.96 billion compared to broadcast's $8.5 billion, with 20% of cable's upfront inventory still unsold.
On the other hand, the broadcast network number was only for prime time while the roughly 70 ad-supported networks were counting all day-parts. Then again, broadcast networks seem to be dropping out of a lot of mid-day and overnight day-parts, so it's a not unreasonable schedule vs. schedule comparison.
Source: "Cable's Big Headlines This Upfront: Continued Good News, Or A More Complex Story?" TVWatch