The Finder to The Lone Gunmen
4 connections
The Finder
Bones
The Finder spun off of Bones after a backdoor pilot on that show
CSI: Crime Scene Investigators
An episode of Bones has a reference to a prostitute who worked at the (fictional and from the CSI universe) Tangiers hotel.
The X-Files
Morley cigarettes are smoked by Warrick Brown in a episode of Crime Scene Investigation.
The Lone Gunmen
The Lone Gunmen was a spinoff of The X-Files