Rich Little's Christmas Carol is another favorite. It is a 1978 Canadian TV special, shot on videotape, but it has aired here on HBO. It's a one-man show, in which Little enacts the Dickens tale through a variety of amusing impersonations.
Scrooge - W.C. Fields
Bob Cratchit - Paul Lynde
Fred - Johnny Carson
Solicitor - Stan Laurel
Solicitor - Oliver Hardy
Jacob Marley - Richard Nixon (instead of chains, he is covered in spools of audiotape)
Ghost of Christmas Past - Humphrey Bogart
Ghost of Christmas Present - Peter Falk as Columbo
Ghost of Christmas Future - Peter Sellers as Inspector Clouseau
Fezziwig - Groucho Marx
Dick Wilkins - James Stewart
Mrs. Cratchit - Jean Stapleton as Edith Bunker
Tiny Tim - Truman Capote
Businessman - John Wayne
Businessman - George Burns
Businessman - James Mason
Boy - Jack Benny
The special is available on DVD.
My all-time favorite version of A Christmas Carol is the 1970 musical adaptation, Scrooge, directed by Ronald Neame, and starring Albert Finney. The film is very close to the Dickens novella, and has a nice atmosphere. At times, it's even rather macabre and frightening, with a few sequences added that weren't in the original story, such as a ghostly coachman riding through Scrooge's home, prior to his first meeting with Marley, and the sequence set in the future, at Scrooge's death, where he falls into his grave, and meets up with Marley again, in the other place, where Scrooge is forced into a fate similiar to Marley's. This sequence is usually cut out of TV broadcasts of the film, but is included in its entirety on the DVD. Alec Guinness makes a spooky Marley, and the cast, made up of British stage and film actors, is excellent.
The score is by famed composer Leslie Bricusse.