Paddy Chayefsky’s 1976 satire about network television, directed by Sidney Lumet, was amazing then, and it’s amazing now, having predicted everything from the rise of a fourth network and the shift of news operations into profit centers to the popularity of reality TV and the influence on American media by foreign interests. Peter Finch is brilliant as maverick television pontificator Howard Beale – and Faye Dunaway, as the ambitious TV executive who presides over his rise and fall, is just as indelible. So is Ned Beatty, for that matter. Don’t get me started. Just watch…