On Monday, the dignitaries hosted by President and Mrs. Obama will bring their regards from Broadway, not 10 Downing Street, while sharing talents that collectively have won them 11 Tony Awards. The public is invited to watch -- eventually -- on "A Broadway Celebration," which will be taped for broadcast Oct. 20 as an installment in the PBS series, "In Performance at the White House." http://latimesblogs.latimes.com/culturemonster/2010/07/obamas-find-a-way-to-do-broadway-at-home-hosting-starstudded-pbs-taping-.html