Tonight, Lifetime will jump on the sentimental trend of reuniting veteran actresses for our giddy enjoyment by airing Ladies of the 80s: A Divas Christmas, a festive romp that stars Loni Anderson (WKRP in Cincinnati), Morgan Fairchild (Falcon Crest), Linda Gray (Dallas), Donna Mills (Knots Landing) and Nicollette Sheridan (Knots Landing).