At the very dawn of color television, the National Geographic Society began its successful run of eagerly anticipated specials. These specials really were special, with breathtaking images and real-life adventures unlike anything previously experienced in American living rooms. Episodes were scored by some of top film composers of the day, including Elmer Bernstein (“Yankee Sails Across Europe”), Ernest Gold (“The Last Vikings”), Leonard Rosenman (“Dr. Leakey and the Dawn of Man”), and Jerome Moross (“Grizzly!”). Travel the world with National Geographic, this Friday at 6 pm.