During the summer of 1955, a new TV show kept people in front of their sets on hot Tuesday nights. “The $64,000 Question” was a big-money quiz show that made its contestants instant celebrities and the show even displaced “I Love Lucy” as the nation’s top TV program. What nobody realized at the time was that the show was planned, paced and cast like a drama, and a contestant’s success depended not on the questions he or she answered correctly, but on a sponsor who would drop you when you ceased to be useful.