British funnyman Ricky Gervais' cult TV comedy The Office is set for even more success - as a spin-off. TV bosses in America are so pleased with the success of the offbeat U.K. show's reworked U.S. hit, starring Steve Carell, they're planning to create a new sitcom, based on the show. Bosses at TV network NBC are planning an episode that will introduce new characters to the hit comedy before they jump to their own series, according to TV Guide magazine. A major Hollywood star is currently being considered for the lead role in the spin-off.