Synopsis: 20110520: Tracy Morgan, Jake Johannsen, the Airborne Toxic Event! Late Show with David Letterman Monday Tuesday Wednesday Thursday Friday weekdays weeknights comedy comedian talk show host interview guests actors actresses singers musical performance pets tricks late night pop star band artist celebrity audience monologue desk family variety American U.S. US band CBS Orchestra standup sketches chat humor New York City Ed Sullivan Theater Broadway Emmy Award Worldwide Pants Incorporated Paul Shaffer Justin Stangel Eric Alan Kalter hourlong broadcast airs 11:35 pm s18 e78 se18 ep78 se ep 18x78 1878 18.78 18x78 18.78 entertainment TV Television Watch Full Episodes Online free