When they do the "To Catch A Predator" sketch they talk about it being at night, but outside the window it's day time.
During a meeting, writers are debunking various Christmas traditions and beliefs. One of the writers refers to the "Immaculate Conception" as being the same as the "virgin birth." The "Immaculate Conception" is Catholic dogma that refers to the conception of Mary, not Christ. It claims that Mary was conceived without "Original Sin" and has nothing to do with the virgin birth.