People walk into the Federal Communications Commission headquarters in Washington, D.C., U.S., on Monday, Nov. 10, 2014. Regulators pushed back by three weeks a deadline to complete their review of Comcast Corp.'s proposed purchase of Time Warner Cable Inc. U.S. officials need time to review in excess of 31,000 documents Time Warner Cable is expected to submit today, the Federal Communications Commission said in a notice posted on its website.