Alex Trebek, Merv Griffin, and Pat Sajak are all big names in the game show industry. ALEX Trebek is best known for hosting the long-running game show Jeopardy! since 1984. Merv Griffin was a television host, musician, and media mogul who created the popular game shows Wheel of Fortune and Jeopardy!. Pat Sajak is an American television personality, former weatherman, and talk show host who has been the host of the game show Wheel of Fortune since 1981. All three of these individuals have made significant contributions to the game show industry and are considered big names in the field.