Person of Interest to Unforgettable
5 connections
Person of Interest
Fringe
In the pilot of Person of Interest John Reese's suspect Diane Hanson has emails numerous characters from Fringe
The X-Files
Fringe makes reference to The X-Files classification of files.
Homicide: Life On The Street
Homicide's John Munch questioned The X-Files' The Lone Gunmen.
Law & Order
Law and Order and Homicide crossed over on four episodes
Unforgettable
Hudson University was the setting of an episode of Unforgettable, the same Univeristy appears on Law & Order many times