FOXNews 'mistakenly' airs last years campaign footage to show the size of the crowds created by the Sarah Palin book tour. Oddly the script was written to suit the 'wrong' footage. Also the footage manages to hide the enough of the McCain/Palin campaign signs. FOX later apologized for getting caught in another mistake.
FOXNews also aired wrong footage a few weeks ago, showing a much larger crowd at a Michael Bachmann event, than were actually in attendance.