Firefly to Journeyman
7 connections
Firefly
Angel
Weyland-Utani is a client of Angel's Wolfram & Hart and also the company that made some of the weapons used by Firefly's Malcolm Reynolds in the Battle of Serenity
Buffy the Vampire Slayer
Angel was a spin-off of Buffy the Vampire Slayer.
The X-Files
The X-Files? Cigarette Smoking Man and Buffy the Vampire Slayer's Spike both smoked Morley cigarettes.
Homicide: Life On The Street
Homicide's John Munch questioned The X-Files' The Lone Gunmen.
Chicago Hope
Chicago Hope's Jeffrey Geiger accepted an organ of a victim on Homicide
Early Edition
Early Edition's Gary and Marissa went to Chicago Hope's hospital for medical treatment.
Journeyman
the characters in Journeyman read the same fictional San Francisco Chronicle that provided Gary with Early Editions.