Join host Michael Keaton to celebrate "Mister Rogers’ Neighborhood," the pioneering children's series that premiered nationally 50 years ago. Keaton worked as a stagehand and made appearances on the series in the 1970. Judd Apatow, Joyce DiDonato, Whoopi Goldberg, Chris Kratt, John Lithgow, Sarah Silverman, Esperanza Spalding and Caroll Spinney reveal their favorite memories from the series.