I LIKE ENGLISH GARDENS JUST FINE, but what I am positively mad for is British television, from costume dramas to coppers-and-crimes. One of my guilty pleasures was the longtime spy series “MI-5,” also known as “Spooks,” in which the astonishing Peter Firth played Harry Pearce, section chief of the unit. As swan-song Season 10 began, Pearce has just been reinstated to the service after a forced eight-week leave. Asked about his unrelished time away, the lifetime career-obsessed spy says: “In one particular dark moment, I actually considered gardening.” Perhaps he pondered a border of poison hemlock? (Photo from BBC One.)