it hurts my head to think back that far, but i think american's system was removed shortly after the flight 191 accident in 1979.

i have to wonder about the author's choice of words in this referenced article when he states "The view from the cockpit was even being broadcast on the airliner's closed circuit television system for the passengers' enjoyment."

http://www.airdisaster.com/special/special-aa191.shtml