This week's broadcast, hosted by Jane Pauley, features Lee Cowan's report on Apollo 8 and the message it delivered to Earth on Christmas Eve 1968. Plus: Michelle Miller meets Drew and Jonathan Scott, stars of the home renovation series "Property Brothers"; Lesley Stahl attends a New York City Ballet workshop for some very special young dancers; Tracy Smith talks with rising pop star Shawn Mendes; Faith Salie attends a performance marking the 200th anniversary of the revered Christmas song "Silent Night"; Nancy Giles looks at the history of fruitcakes, while Mo Rocca attends a tamale-making party; and anchor emeritus Charles Osgood and the Young People's Chorus of New York City join us for a musical celebration of the season.