Eureka to Journeyman
6 connections
Eureka
Warehouse 13
Fargo from Eureka visits Warehouse 13 in a crossover episode
The X-Files
On Warehouse 13 Mrs. Frederic and Steve Jinks enter The Library, a secret room in the Vatican. There is a pack of Morley cigarettes on the table
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.