"Duh! (Game Show)" is a television quiz show that tests contestants' knowledge of common facts and trivia. The format features simple questions that often have obvious answers, making it entertaining for both participants and viewers. Contestants compete for prizes by answering questions correctly, and the show emphasizes fun and lightheartedness. The game show is hosted by Ellen DeGeneres, who engages with contestants and the audience throughout the episodes. "Duh!" aims to create a relaxed atmosphere, encouraging laughter and enjoyment as players navigate through the straightforward yet amusing questions presented during the game.