As of 2015, you can audition for a game show on the Game Show Network by choosing the show you want to try out for and filling out a brief form to be notified of casting dates and other information. "Who Wants To Be A Millionaire" audition schedules and locations are announced on the show's webpage when they are available.
Getting on "The Price is Right" doesn't require an audition; just purchase tickets to one of the showings and register to be a contestant before the show begins taping. Contestants are chosen randomly from the studio audience. You have to be at least 18 to register to be a contestant on "The Price is Right," but all ages are invited to be a part of the audience. It is recommended to arrive to the venue at least three hours before the show is scheduled to start to allow enough time to register.
Apply to compete on "Wheel of Fortune" by filling out the application and submitting a video on the show's official website. The show is looking for teens, college students and adults to compete on the show. The application includes basic identification questions and questions to determine which episode would make a good fit for you. The website also provides tips on making a good audition video.