CSI: New York to Sleepy Hollow
4 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
Bones
An episode of Bones has a reference to a prostitute who worked at the (fictional and from the CSI universe) Tangiers hotel
Sleepy Hollow
Temperance and Booth from Bones team up with Icabod and Abbie from Sleepy Hollow on a case