Last night on the Late Show with David Letterman, Tom Hanks gave us all an early holiday smooch under the mistletoe, taking care to Windex off the cold germs he left behind. Plus: Robert Downey Jr. spoke the Queen’s English required in his dialectical training; Kunal Nayyar revealed his strategy for one-upping his wedding pranksters, but his secret’s still golden because apparently, “No one watches Conan in Indiaâ€; and Sean Hayes had trouble finding Craig Ferguson on his walk-on. Watch our compilation to see what you missed.