Watch HDToday. In this Christmas-themed show, Danny welcomes as his guests Andy Williams, Dick Van Dyke and Mary Tyler Moore. Danny and Dick are featured in a song-and-dance number, 'Puttin on the Ritz'. The featured comedy skit has Van Dyke portraying a tough as nails prosecutor locking horns with a seedy defense attorney during a murder trail were both lawyers play to television cameras in the courtroom.