During a rehearsal in preparation for the Chief of Staff of the Air Force transition ceremony, Master Sgt. Robert Sims, Air Force TV broadcast journalist, checks the setting on his video camera at Joint Base Andrews, Md., on Aug. 9, 2012. Live coverage of the ceremony will begin at 10:30 a.m. (Eastern Daylight Time) on Aug. 10 via the Pentagon Channel. A simulcast of the ceremony can be found on the Pentagon Channel's web site: http://www.pentagonchannel.mil. A video feed of the ceremony will also be available on the Air Force's official web site at: http://www.af.mil/live.asp.Viewing on the Air Force Portal will be available through a log in splash screen. (U.S. Air Force Photo/Senior Airman Perry Aston)