Question: At the end of the episode, Dicky's parents are called and informed that the government has killed him? Why did they do this?
Answer: It's the opposite - not smart but dumb. The voice said he failed to get a perfect score, less than one hundred percent.
Quote: "We regret to inform you that your son's intelligence quotient has EXCEEDED the government standard, according to section blah blah blah of the New Code." As in the original short story, they were eliminating intelligent people.
Where can I find the short story?
It's in the compilation "100 Great Science Fiction Short Stories" edited by Isaac Asimov.
It's by Henry Slesar and a quick Google search will show you some online copies. It's only two pages.
According to Wikipedia, it was first published in the February 1958 issue of Playboy magazine; it may have been reprinted elsewhere since then.
Answer: They live in a totalitarian state where people who are deemed too smart (and therefore a threat to the authorities) are done away with. That's the point of the test, to eliminate potential troublemakers.
Brian Katcher