Fairly watchable, for what it is.
Jessy Schram and Wes Brown make for a good pairing, I enjoyed them enough. The rest of the cast are well chosen, Kix Brooks the probable standout of 'em. The story is an obvious one given the title, but it is one told in a relatively brisk manner.
'A Nashville Christmas Carol' is cheesy and all that stuff too, though that's arguably the job of these festive TV flicks. This 2020 release is fine, not terribly far off 'good' in fact.