"Advertisers have committed between $8.1 billion and $8.7 billion to the five broadcast networks’ coming program schedules, according to estimates from Advertising Age, eking out a small gain over last year’s estimated $7.8 billion to $8.1 billion."

So begins Brian Steinberg’s perceptive wrap-up of the broadcast networks’ 2010 upfront.

Click here to read his entire analysis.