Medical Investigations to Melrose Place (2009)

A sick suspect on Third Watch triggers an investigation by the characters from Medical Investigation.

Judge Isabel Hernandez from Miss Match also appeared on an episode of Boston Legal.

Ivan Tiggs and Shirley Schmidt from Boston Legal go out to diner at Melville's restaurant from Cheers

St Elsewhere's Westphall, Craig and Auschlander visited Cheers' bar

St Elsewhere's Dr Turner was investigated for murder by Homicide's Pembleton and Bayliss.

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