“The show’s final cuts reflected many similarly exacting interventions. Once, Rogers provided new lyrics for the 'Tomorrow' song that ended each show to ensure that children watching on Friday wouldn’t expect a show on Saturday, when the show didn’t air. And Rogers’s secretary, Elaine Lynch, remembered how, when one script referred to putting a pet 'to sleep,' he excised it for fear that children would be worried about the idea of falling asleep themselves.”