The Emergency Room scene is using the same set as the television show Emergency. At one point you can see behind the officers the status board that Rampart Emergency uses to keep track of the Los Angles County Squads that are assigned to the hospital's base station.
The merry-go-round location (at least the exterior) used in the final sequence appears to be the same as the one in movie "The Sting", from the previous year, in which the Robert Redford character first meets the Paul Newman character.
This episode gives 2 nods to 'you only live twice'. The actress on the phone was in the movie and Kojak says he feels like James Bond.
The maroon Chevy Nova used in the Los Angeles sequences is the same car used prominently a few episodes earlier, 18 Hours of Fear.