The Wire to Third Watch
4 connections
The Wire
Homicide: Life On The Street
On The Wire (episode "That's Got His Own") Junior Bunk from Homicide was mentioned as someone who had once put bad drug product on the market causing deaths.
Chicago Hope
Chicago Hope's Jeffrey Geiger accepted an organ of a victim on Homicide
ER (1994)
A reporter on Chicago Hope talked to Dr. Austin about having been accepted into the space program and mentions an ER doctor from County was also accepted. In a separate episode of ER Dr. Greene was accepted in the space program.
Third Watch
ER's Dr. Lewis went to New York to look for here sister and was aided by the characters of Thrid Watch.