Think you're a die-hard fan of 'It's Always Sunny in Philadelphia'? A new quiz challenges even the most dedicated viewers to prove their knowledge of Paddy's Pub and its eccentric owners. Test your memory of obscure plot points, character quirks, and running gags from all seasons of the cult comedy. Only true Sunny scholars will ace this ultimate trivia challenge. See if you have what it takes to be crowned the ultimate 'It's Always Sunny' expert.