sketches that originally aired on it; this would prove valuable in 1993, when Letterman left NBC to launch the Late Show on CBS. NBC wanted to claim that much of the work he did on Late Night was the property of NBC, but because those sketches were carryovers from The David Letterman Show, he was allowed to take them to CBS. The production staff consisted of George Callahan, Kim Carney, Lee B. Chernick, Barbara Gaines, Edd Hall, Tim Holton, Brian J. McAloon, Meg Mortimer, Dency Nelson, and David Reale. The news producer was Alan Mohan, and the news writer was Nick Allen. Bill Kelley was the technical director. The musical director was Frank Owens who led the "David Letterman Symphony Orchestra" (actually a four-person combo) and traded jokes with Letterman. Longtime NBC newsman Edwin Newman provided live news updates in the studio during each broadcast; studio audience members would often interrupt his reporting with laughter or groans, as if Newman were an anchor on Saturday Night Live'''s "Weekend Update". The program was produced by Space Age Meats, a precursor to Letterman's later production company, Worldwide Pants Incorporated. Guests Valri Bromfield, Edie McClurg, Rich Hall, Gerard Mulligan, Merrill Markoe and Paul Raley all appeared on the show and served as writers. Edd Hall (later the announcer on The Tonight Show with Jay Leno) and Late Show producer Barbara Gaines were both production assistants, while stage manager Biff Henderson and director Hal Gurnee would follow Dave to his next two shows. Announcer/comedian Bob Sarlatte was replaced partway through the run by Bill Wendell, who would also announce on Dave's next two shows. Among guests who appeared were Steve Allen, Andy Kaufman, Wil Shriner, Richard Lewis, Dinah Shore, Judy Collins, Tom Snyder, photojournalists Jon & Keiko Alpert, keyboardist Suzanne Ciani, Dr. Isaac Asimov and Jeff Greenfield, who reviewed the first show while it was on the air. The show's musical guests included Tony-winner Nell Carter, Irene Cara, Tom Rush and Harve Mann , and U2 ( where Bono and the Edge famously entered the audience midway through their song "I Will Follow ". ) In one of his earliest television appearances, a young Bill Maher was an audience member on the show's first episode, and Conan O'Brien claims he hitchhiked to New York just to see a broadcast in Studio 6A (which has also been home to some of Jack Paar's NBC programs,