NBC Chairman of Entertainment Robert Greenblatt and "30 Rock" executive producer Tina Fey issued statements lamenting series star Tracy Morgan's anti-gay remarks at a recent stand-up performance, which went viral after an attendee posted them on Facebook. But they didn't boot him off the show -- yet. Noting that Morgan's remarks reflect negatively on NBC and "30 Rock," Greenblatt stressed that "we have made it clear to him that ...