text: A significant issue regarding Letterman's move to CBS was the ownership of long-running comedy bits used on Late Night, as well as the name of the CBS show itself. NBC claimed that much of what he did on Late Night was intellectual property of the network.  Letterman and his attorneys countered that some segments ("Stupid Pet Tricks", for example) pre-dated Late Night and had first aired on The David Letterman Show, which was owned by Letterman's production company rather than NBC, and others, such as the Top Ten List and Viewer Mail, were common property and not owned by either Letterman or NBC.   Ultimately a compromise was reached in key areas: the "Viewer Mail" segment would be called the "CBS Mailbag"; the actor portraying Larry "Bud" Melman on Late Night would use his real name, Calvert DeForest, on the CBS show; and Paul Shaffer's "World's Most Dangerous Band" would become the "CBS Orchestra".
  NBC gave Letterman the choice of at least two options to name his new show, Late Show with David Letterman or Nightly with David Letterman. On this matter CBS executives stepped in, rejecting Nightly in part because of potential confusion with Nightline on ABC, along with the NBC Nightly News. Thus, Late Show with David Letterman quickly became the official name.