Comcast and General Electric have agreed to make NBC Universal CEO Jeff Zucker the head of their proposed joint venture, but the structure of a new board is still being negotiated, sources familiar with the matter said.

The two sides have been in talks to reach a deal that would give Comcast a 51 percent stake in the NBC Universal venture, which would also house the cable networks now belonging to Comcast. They recently agreed to value NBC Universal at about $30 billion, sources previously told Reuters.

Under the terms being discussed, Zucker will lead the new entity, with no clauses for him to leave after a specific period, the sources said on Tuesday.

Read more from Reuters [1].