Haven to Without a Trace
4 connections
Haven
The X-Files
On Haven Audrey Parker's boss also trained The X-Files? Mulder
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
Without a Trace
Multiple episodes feature Hudson University, the Alma Mater of multiple L&O characters