via press release:
CBS PROGRAM ADVISORY FOR FRIDAY, JULY 20, 2012
48 HOURS: TRAGEDY IN AURORA will be broadcast tonight (8:00-9:00 PM, ET/PT), replacing previously announced programming on the CBS Television Network.
CBS's Revised Schedule for Friday, July 20
8:00-9:00 PM 48 HOURS: TRAGEDY IN AURORA
9:00-10:00 PM: NY (R)