Satellite television service provider DirectTV Inc. signed a 15-year, nine month lease with Kilroy Realty Corp. to keep its corporate headquarters in a pair of El Segundo office buildings on East Imperial Highway next to the LAX airport, and expand into a third building at the Kilroy Airport Center for a total space commitment of approximately 630,000 square feet. The firm also negotiated options to expand into additional space in the three buildings for a total of 720,000 square feet over the term of the lease agreement.