User blog comment:POMfannumber1/Episodes To Convert Someone Into A Whovian/@comment-3538016-20140622153801

Army of Ghosts and Doomsday were what converted me. They had everything I could possibly want in a show: a clever, competent protagonist, just the right amount of drama, and two iconic villains whose inclusion implied a significant backstory and a vast universe I was barely scratching the surface of. This two parter won me over.