Paul Shaffer : The David Letterman viewers see on air is who he really is . Shaffer 's new show has elements of ` ` Saturday Night Live , '' ' . Any regrets on not accepting that part ? Shaffer was offered opportunities to play the Seinfeld sidekick at one point . Bandleader legendary for his ` ` Celebrity Seders ''
Paul Shaffer : The David Letterman viewers see on air is who he really is . Shaffer 's new show has elements of ` ` Saturday Night Live , '' ' . Shaffer was offered opportunities to play the Seinfeld sidekick at one point . Bandleader legendary for his ` ` Celebrity Seders ''