Martial Law to Melrose Place (2009)

Early Edition's Gary is asked to locate someone for Martial Law's Sammo Law

Early Edition's Gary and Marissa went to Chicago Hope's hospital for medical treatment

Chicago Hope's Jeffrey Geiger accepted an organ of a victim on Homicide

Homicide's John Munch questioned The X-Files' The Lone Gunmen.

Brenda Walsh picks up a Morley smoking habit while in Paris on Beverly Hills 90210

90210 was a continuation of Beverly Hills 90210 years later

Melrose Place (2009) was a continuation of Melrose Place which was a spin off of Beverly Hills 90210 that was continued as 90210