The sale of NBC Universal took a step closer Monday as General Electric, which holds an 80% stake in NBC U, and Comcast agreed the price tag, according to wire reports.

The pair have valued NBC U at around $30 billion. Under the proposed deal, Comcast would take a 51% stake in order to control the company.

However, it is not a done deal as Vivendi, which holds the remaining 20% in NBC U, is able to veto the pact. The Federal Communications Commission could also scupper the plan on anti-trust grounds.

Comcast is interested in buying NBC to access its holdings in Hulu.com an online television and movie site that allows visitors to view content for free.

Comcast wants to begin charging customers that use Hulu.com in 2010 because it is drawing customers from its own on-demand paid programming.