WMG: Kolchak: The Night Stalker

The final episode.

  • The only reason they found the tape recorder was because an armed team was scouring the tunnels looking for the cart he was using.

Kolchak is related to The X-Files' Arthur Dales

  • It certainly explains the predilection for the supernatural in both of them.

Kolchak's hat is an ancient artifact granting ultimate power.

  • It explains why he never goes out without it, and how he always wins despite being an ordinary human in a world full of demons, aliens, werewolves, etc. who actively goes looking for trouble, is typically unarmed, and has no combat training.

Kolchak is either psychic or some form of monster himself.

Despite being given the barest of clues and never exhibiting great detection skills,Karl Kolchak manages to locate and defeat monsters in a crowded urban area with little or no assistance. These monsters included an alien, a humanoid, and TWO separate vampires. How could this be possible?

Either Kolchak SENSED the presence of these creatures, or he was a creature himself and had an affinity.

Kolchak is responsible for Special Investigations

Who else would cause the police so much trouble that they're forced to create a special division in the department to explain everything away, and so understaffed that it could do little.

The series takes place in the same universe as The Rockford Files

The final episode of Rockford had Jim meet a reporter with the Independent New Service, the same news service Carl works for. One of the writers of the episode was Rudolph Borchert who wrote several episodes of Kolchak. The shows shared more than one creative personnel. David Chase (later of The Sopranos) also worked on both shows. Simon Oakland (who played Kolchak's boss) appeared in a few roles on Rockford.

Kolchak's tapes still exist
They were picked up by Harry Dresden, giving him his first encounter with the supernatural. (Why Dresden? They both live in Chicago.)
  • Harry didn't always live in Chicago, and knew about the supernatural before then. Now, Murph? She's a good candidate. Maybe her father even dealt with Kolchak at some point.

Kolchak is delusional
I know it's a Stock Epileptic Tree, but hear me out. Kolchak always goes in with a preconceived notion about what the supernatural menace is, and of course he turns out to be right... from his perspective. Nobody ever corroborates his story even if they (according to what Kolchak remembers) saw it too, and at the end of every episode all the evidence is always mysteriously destroyed. He clearly remembers something supernatural happening, but neither other witnesses nor the physical evidence can back him up on that. Everyone he knows very clearly expresses the fact that they think he's insane, but we the viewers know he isn't and that they're just Jerk Asses because we saw the monsters too. But then, the show is told entirely from Kolchak's perspective, with articles written by Kolchak about what he remembers seeing as the Framing Device. We're just seeing what Kolchak remembers seeing, whether or not it was ever actually there.
  • NOTE: I've only seen the first season, and this is just based on that, so I'm open to the possibility that what are omnipresent features of every episode I've seen so far might stop happening with such regularity in later stories, which would go against my theory. Then again, that might just be a sign that his delusion has gotten more severe.