When Joe Friday and Bill Gannon arrive at the TV station and the makeup guy looks them over, Bill mentions to Joe that he's 45 years old. The character he played may have been only 45, but Harry Morgan was 53 years old at the time.
In this season of Dragnet, the episode title mentions the department which Friday and Gannon assigned to , as well as the Report Number (DR or Division of Records) followed by the number itself.
At the "Speak Your Mind" television show within a television show, the audience and show panel discuss protesting the president of the United States. At the time of this episode (1968), Lyndon B. Johnson was the president. He was the 36th president of the United States, serving from 1963-69.