8x131 - Late Show with David Letterman

Dave celebrates birthday #54 by repeatedly showing a Gap ad featuring a very comely woman dancing/walking; we are treated to a clip show of some of the various moments of the last year, including the "dingo" bite and the cottage cheese-loving duck; Maria mentions that Pioneer was willing to give Dave a new DVD player on-air, but Dave politely screamed "No!"; the Hi-Ho girls bring out a giant cake, and Biff delivers slices to the audience.