NPR just did a full broadcast reading to the Dickens novel on Christmas Eve. I listened to parts of it on the way to and from work. You might be able to stream the audio version free from their website. I'm a huge Dickens fan. Love David Copperfield (the book, not the magician).
My personal favorite TV version is the Disney Mickey's Christmas Carol (yeah, yeah, I know). Also check out Scrooged with Bill Murray. I think it's on Netflix right now. Worth a look.