By Brendan Sasso - 02/12/13 10:06 PM EST
The company said it expects to close the deal by the end of March.
Comcast's initial deal to buy 51 percent of NBCUniversal drew fire from consumer advocates, who worried the merger would consolidate too much market power in the hands of one company.
They feared that Comcast could use its control over the distribution of video content to unfairly favor NBC products.
The Federal Communications Commission and the Justice Department eventually approved the deal after Comcast agreed to conditions, such as giving up its control over online video site Hulu.