Joy to the World: A Celebration of Christmas (1984)

This was a very short (just over six minute long) fully choreographed Christmas carol concert performed by a choir in Dickens era dress with various stars of "Coronation Street" and "The Adventures of Sherlock Holmes" having non-speaking cameos doing things like passing out refreshments and dancing with the children (with the exception of David Burke "Dr. Watson" also doing a short solo.)