Guess & Know is a full trivia game engine, with networked play (see Guess & Know Companion) via iPad, iPod touch and iPhone devices, with output to television either wired or via Apple TV/AirPlay. Example uses are family reunions, school classwork review, business review settings, even in pubs or bars where patrons can enjoy a game while relaxing at the bar!
The app includes a sample game. Use Apples "Settings" app to access the settings for Guess & Know and toggle the switch for "Restore Sample Game" The next time you launch Guess & Know the sample game will get restored for you.