EMERGENCY!, Adam 12, CHiPs and Quincy, M.E. all exist in the same universe.
- Engine 51 and Squad 51 appear on CHiPs.
- Engine 51 and Squad 51 appear on Quincy, M.E. Patients are sometimes brought into the Rampart ER. In at least one episode, LA County paramedics call in a cardiac case to Rampart over a Biophone.
- Adam 12 is confirmed to be in the same universe, as Reed and Malloy appeared on EMERGENCY!