Last week, for the first time since Leno’s return to late night, Letterman’s Late Show beat the Tonight Show in all measurable categories: Letterman scored 3.8 million viewers to Leno’s 3.6 million, and also won in both the 18 to 49 and 25 to 54 demo. Going to be a rough couple of weeks for Leno, huh? [Live Feed/HR]