Clark: I dunno what the hell's in there, but it's weird and pissed off, whatever it is.
The last time Doc tries the defibrillator on Norris, he uses it on the abdomen instead of on the chest.
The TV edit of this film includes lots of footage that was purposely left on the cutting room floor, such as when the dead Norwegian on the table blinks, and so on. The TV edit also has narration. This version is edited so much that director John Carpenter has publicly stated that he finds the TV edit embarrassing and a disgrace to his movie.