13. Masterpiece Classic: Downton Abbey (7 Episodes)

Category: British TV Shows
Stars: Hugh Bonneville, Jessica Brown-Findlay, Laura Carmichael, Jim Carter, Michelle Dockery, Siobhan Finneran, Joanne Froggatt, Thomas Howes, Maggie Smith, Dan Stevens

Go ahead, ask some friends if they watch the BBC's breakout hit Downton Abbey-we're willing to bet that some of them, probably the most unexpected ones, secretly obsess over the hottest English import since Kelly Brook. Set in a lavish mansion, during the early 20th century, the high-class costume drama puts relatable domestic dramas into an unfamiliar, history-textbook setting, and the results, as acknowledged by the Emmys last year through a whopping six awards, are addictively captivating.