Jeopary! is a television quiz game show based on trivia in topics such as history, literature, pop culture, and science. The show has a decades-long broadcast history in the United States since being created by Merv Griffin in the early 1960s. It first ran on NBC from March 30, 1964 until January 3, 1975; in a weekly syndicated version from September 9, 1974 to September 7, 1975; and in a revival from October 2, 1978 to March 2, 1979. Its most successful incarnation is the Alex Trebek-hosted syndicated version, which has aired continuously since September 10, 1984. It has also been adapted internationally.