One of my stay-at-home guilty pleasures these days are those detective-mystery series currently flooding the PBS prime-time airwaves. Based on popular crime novels featuring quirky murder-solving characters, these television shows typically originate in the United Kingdom and then make their way to America a few years later. There’s Sherlock, of course—a highly contemporized adaptation of the Sir Arthur Conan Doyle detective stories that has become immensely popular on both sides of the pond—and over the summer I became addicted to two others: Grantchester (based on mystery stories, by James Runcie, about a clergyman in 1950s England who sleuths in his spare time) and Midsomer Murders (set in the English county of Midsomer, where upscale Detective Chief Inspector Tom Barnaby solves crimes in adaptations of Caroline Graham novels).