Now, who doesn't like a bit of Dolly at Christmas? Well, add a little Treat Williams and make Christine Baranski a baddie, and that should have been a recipe for success. Well - it isn't. The whole thing is so sentimentally cheesy that it's almost excruciating to watch. The plot - insofar as that remotely matters - is a sort of "A Christmas Carol" affair, with Baranski deciding to sell her town to some property…