Just as 30 Rock comes to a close, the Kabletown, er, Comcast, takeover of NBC nears completion. Comcast announced Tuesday it will buy General Electric's 49 percent stake in NBC Universal for about $16.7 billion. The deal will close at the end of the first quarter. NBC will be settling in—purchasing its 30 Rockefeller property and CNBC headquarters in New Jersey for about $1.4 billion. "We believe the terms of the transaction are attractive and have planned for this event by taking a number of financial steps to prepare our balance sheet," Chairman and CEO of Comcast Brian L. Roberts said in a press release. "We believe we are in a strong and unique position to continue to grow and build value in our combined company."