while watching tv, a broadcast interrupts what you were watching

BROADCAST: This is not a test. This is your emergency broadcast system announcing the commencement of the Annual Purge, sanctioned by the U.S. Government. Commencing at the beep, any and all crime, including murder, will be legal. Weapons of class 4 and lower have been authorized for use during the Purge. You can not kill government officials rank 10 and higher a beep sound plays