Just when you finally memorized your TV lineup, General Electric may be closer to selling its ownership of NBC to Comcast. NBC Chief Jeffrey Immelt met with the head of Vivendi, the minority owner of NBC, in France Wednesday. Immelt is looking to get Vivendi to agree to a value at which it would sell its 20 percent share of NBC to Comcast. Bloomberg News reports that the two sides are less than $500 million apart. Getting Vivendi on board is a critical step in creating a joint venture between GE and Comcast. The Philadelphia cable giant would take a majority ownership of the company. Company officials declined to comment. Each year, Vivendi has a window between November 15 and December 10 to sell its stake.