This was actually the last show to be filmed.
The last episode to be filmed it was the last of seven appearances made of Gregg Henry in the show.
During the opening sequence when they show the "Atlanta Biological Research Institute", the building shown is actually Robards Library at the University of Toronto.
Erick Avari, who played Mr. Jaffa, also had a recurring role on Stargate SG-1 (1997). The enemy warriors on Stargate were called Jaffa.