Luther to Millennium
4 connections
Luther
Law & Order: Special Victims Unit
DCI John Luther asks DS Ripley to call John Much of the Special Victims Unit in New York
Homicide: Life On The Street
John Munch was a detective Homicide and then SVU
The X-Files
Homicide's John Munch questioned The X-Files' The Lone Gunmen.
Millennium
The X-Files' Jose Chung was also investigated by Millennium's Frank Black and later X-Files' Mulder and Scully meet Millennium's Frank Black.