In a newsroom scene in the pilot (at 17:00), Darren McGavin (the original Kolchak from the 1970s movies and television series) can be seen standing at one of the desks, dressed as the 1970s Kolchak, chatting with one of the reporters. This footage was digitally inserted from an episode of Kolchak: The Night Stalker (1974).
Cancelled after six episodes. Syfy Channel picked up the series and aired the episodes that ABC did not.
Kolchak's license plate is 197DMG2. 1972 is the year the original Night Stalker movie premiered, and DMG stands for Darren McGavin.
Kolchak's wife is named Irene. In the original series, Darren McGavin's wife Kathie Browne played a police captain named Irene.
A hat similar to the one used in the original series was used as a prop for one of the scenes in the pilot.