CSI: Cyber to Sleepy Hollow
3 connections
CSI: Cyber
CSI: Crime Scene Investigators
CSI spun off CSI:Cyber
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