Michael Emerson discussed the ending of Lost with Jimmy Kimmel last night, saying that the show would both provide "new mysteries" for the viewers and still lead to a "satisfying conclusion." Then Kimmel asked point blank if he knew how it ended and Emerson admitted that he did not. On The Late Show, David Letterman was elated thanks to a chance encounter with a talking dog, the white whale of Stupid Pet Tricks. Finally, Craig Ferguson made a joke about Kevin Smith that seemed to have been written by the director himself. Watch our compilation to see what you missed.