To dream that you are on a game show suggests that you need to change some aspect of your life around. You may be experiencing feelings of uncertainty and what the future may hold. Consider the type of game show or the name of the game show. What are you playing for and what is its significance relative to your waking life.
If you dream that you are a game show host, then it represents your over-the-top personality. Perhaps you are hiding some disappointment or you are downplaying something exciting happening in your life.