CSI: New York to Twin Peaks
5 connections
CSI: New York
CSI: Miami
CSI: New York was a spin off of CSI: Miami
CSI: Crime Scene Investigators
CSI:Miami was a spin off of CSI
The X-Files
Morley cigarettes are smoked by Warrick Brown in a episode of Crime Scene Investigation.
Fringe
Fringe makes reference to The X-Files classification of files.
Twin Peaks
Fringe's Walter is friends with Dr. Jacoby from Twin Peaks