Tracking shot during opening credits, Danny and Casey walk into their office while talking. Casey sits down at the desk while Danny remains standing, reflection of boom mic clearly visible in the glass (upper lefthand corner). It can be seen moving in unison with Casey and Danny's alternating lines of dialog.
Danny says Napoleon died on the Island of Elba, and Casey "corrects" him by saying Napoleon was really murdered on Elba. They're both wrong. Napoleon escaped from the Island of Elba, just off the coast of Italy, in 1815, regained power for the "100 Days", was defeated in the Battle of Waterloo, and was then exiled on St. Helena, an island in the middle of the Atlantic Ocean. He died there in 1821. Since the show originally aired, the allegation that Napoleon was murdered (by arsenic poisoning) has been discredited.