"Happy Christmas, Mrs. King" is the 1998 Christmas episode of the Disney series Road to Avonlea.
This film takes place a few years after the final episode. Felix, who has been fighting in World War I, has been listed as missing in action. Janet's reaction to the possibility of having lost a son alienates her from the rest of the family. Meanwhile, Hetty tries to get a famous elocutionist to perform for the school choir's Christmas performance. While in Charlottetown trying to persuade him, she collapses. A doctor tells her that a tumor has been found on her spine, and a biopsy is performed.