The Ed Sullivan Show
1948
Dennis Michael Crosby (July 13, 1934 – May 4, 1991) was an American singer and occasional actor, the son of singer and actor Bing Crosby and his first wife Dixie Lee, and twin brother of Phillip Crosby. He was the father of Star Trek TNG actress Denise Crosby (who was named after him), and of screenwriter/film producer Gregory Crosby (Hacksaw Ridge). Wikipedia