My parents watched it faithfully. My dad would have been over the moon to get a Christmas Card. He had a book that one of the female singers wrote and I know he read it about 10 times.
They used to try to get me to watch it by telling me that Bobby from the Mickey Mouse Club was on it (it was not the same. Bobby was grown up and not wearing mouse ears).
But I can and do listen to Glenn Miller, Frank Sinatra, Benny Goodman, etc. now which they couldn't have PAID me to listen to when I was a teenager.