The stories appeared between 1973 and 1979. The 1,666 teenage suicides that occurred from 0 to 7 days after these broadcasts was significantly greater than the 1,555 expected. In addition, the more networks that carried a story about suicide, the greater was the subsequent increase in suicide. These findings persisted after correction for the effects of the day of the week, the month, holidays, and yearly trends. Teenage suicides also increased more than adult suicides after stories about suicide. Suicides increased as much after general-information or feature stories about suicide as after news stories about a particular suicide. Six alternative explanations of these findings were assessed, including the possibility that the results were due to misclassification or were statistical artifacts. Findings indicated that the best available explanation is that television stories about suicide trigger additional suicides, perhaps because of imitation. Table and 28 references.