This episode contains the only "series universe" reference to what may happen when an immortal kills another on holy ground.
Second appearance of Andrew Divoff. His first was as a mortal criminal in season 1 episode "Bad Day in Building 'A'."
The reference to 2 immortals fighting on holy ground implys that the battle may have caused the eruption in Pompeii in 79AD, Adrian Paul would later star in the B movie Apocalypse Pompeii, Released at a similar time to the Movie Pompeii starring Kit Harrington who was staring as another dark haired northern swordsman in game of thrones at the time.