As the driver starts hearing the reporter in slow motion, the sign on the wall behind him reads 'Time Slip.'
House cracks a joke about Wilson bringing cocaine back from Afghanistan, to which Wilson insists he's never been to Afghanistan; in the Sherlock Holmes canon, Watson (on whom Wilson is loosely based) was injured in Afghanistan, which is what led him to rooming with Holmes.
According to Dr. Terzi, "X-Files is the next wing over," referring to the Fox series that ran from 1993 to 2002, and starred David Duchovny and Gillian Anderson as FBI agents investigating the supernatural.
House plays with an eagle ornament on the CIA agent's desk. The same ornament shows up on his desk throughout the rest of the show, implying that he stole it.