Party of Five to Person of Interest
3 connections
Party of Five
The X-Files
In the X-Files episode "Milagro" Mulder & Scully visit a graveyard where Party of Five's Diana and Nicholas Salinger are buried.
Fringe
Fringe makes reference to The X-Files classification of files.
Person of Interest
In the pilot of Person of Interest John Reese's suspect Diane Hanson has emails numerous characters from Fringe