The title is a play on the title of the poem "Twas the Night Before Christmas" (or "A Visit from St. Nicholas") first published anonymously in the "Troy Sentinel" (Troy, New York) on December 23, 1823, by Clement Clarke Moore.
This Episode Marks the Final Appearance of Lewis
This Episode Marks The First Time Brian and Casey Decide to go on Separate Dates this goes on till the Final Season Episode oedipus wrecks
Helen (Crystal Bernard) makes Joe (Tim Daly) wear an "Ugly Christmas Sweater."