American Horror Story: Coven, aka Season 3 of Ryan Murphy and Brad Falchuk’s gleefully grisly FX anthology, opened with record-breaking crowds last night. About 5.54 million — and 3.87% of the country’s 18-49-year-olds — tuned in to watch Kathy Bates give Jessica Lange a run for her scenery-chewing money as early 19th century New Orleans grand dame Madame LaLaurie who, when not leading society, kills time peeling the skin off the faces of her slaves, or turning them into minotaurs. It’s the most-watched telecast ever in the American Horror Story franchise — and, when Live+7 stats come around, stands a good chance of becoming the most-watched program in FX history. We feel compelled to note here that AHS: Coven got beat in its timeslot by — you know it’s coming — Duck Dynasty. The improbable A&E docu-soap hit clocked 7.4 million viewers — 4.02 million of them aged 18-49.