Definitions for game show
Random House Webster's College Dictionary
a radio or television program in which contestants answer questions or play games in order to win prizes.
game show, giveaway(noun)
a television or radio program in which contestants compete for awards
Kernerman English Learner's Dictionary
a TV program in which people take part in a competition
a game show host
A radio or television programme or an episode of the programme that involves members of the public or celebrities, whether as individuals or as part of a team, playing a game, especially involving the answering of quiz questions, for cash or prizes.