Millennium to Moonlight
3 connections
Millennium
The X-Files
The X-Files' Jose Chung was also investigated by Millennium's Frank Black and later X-Files' Mulder and Scully meet Millennium's Frank Black.
Veronica Mars
The mugshot of Malcolm T Wiggins from the X-Files episode "Titonus" appears on the wall of a police interrogation room in the Veronica Mars episode "Leave it to Beaver." Also the fictional car rental company Lariat where Mulder & Scully always rented their cars was featured prominently on the Veronica Mars episode "Rat Saw God."
Moonlight
Veronica Mars? fictional Hearst University also is a setting in Moonlight